Question
Solve the system of equations
Solve using the substitution method
Solve using the elimination method
Solve using the Gauss-Jordan method
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(x,y)=(38326,−383585)
Alternative Form
(x,y)≈(0.067885,−1.527415)
Evaluate
{−45x−2y=013=−9y−11x
Solve the equation for x
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Evaluate
−45x−2y=0
Move the expression to the right-hand side and change its sign
−45x=0+2y
Removing 0 doesn't change the value,so remove it from the expression
−45x=2y
Change the signs on both sides of the equation
45x=−2y
Divide both sides
4545x=45−2y
Divide the numbers
x=45−2y
Use b−a=−ba=−ba to rewrite the fraction
x=−452y
{x=−452y13=−9y−11x
Substitute the given value of x into the equation 13=−9y−11x
13=−9y−11(−452y)
Multiply the terms
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Evaluate
−9y−11(−452y)
Multiply the terms
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Evaluate
−11(−452y)
Multiplying or dividing an even number of negative terms equals a positive
11×452y
Multiply the terms
4511×2y
Multiply the terms
4522y
−9y+4522y
13=−9y+4522y
Swap the sides of the equation
−9y+4522y=13
Multiply both sides of the equation by LCD
(−9y+4522y)×45=13×45
Simplify the equation
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Evaluate
(−9y+4522y)×45
Apply the distributive property
−9y×45+4522y×45
Simplify
−9y×45+22y
Multiply the numbers
−405y+22y
Collect like terms by calculating the sum or difference of their coefficients
(−405+22)y
Add the numbers
−383y
−383y=13×45
Simplify the equation
−383y=585
Change the signs on both sides of the equation
383y=−585
Divide both sides
383383y=383−585
Divide the numbers
y=383−585
Use b−a=−ba=−ba to rewrite the fraction
y=−383585
Substitute the given value of y into the equation x=−452y
x=−452(−383585)
Simplify the expression
x=452×383585
Calculate
x=38326
Calculate
{x=38326y=−383585
Check the solution
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Check the solution
{−45×38326−2(−383585)=013=−9(−383585)−11×38326
Simplify
{0=013=13
Evaluate
true
{x=38326y=−383585
Solution
(x,y)=(38326,−383585)
Alternative Form
(x,y)≈(0.067885,−1.527415)
Show Solution

Relationship between lines
Neither parallel nor perpendicular
Evaluate
−45x−2y=0,13=−9y−11x
Write the equation in slope-intercept form
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Evaluate
−45x−2y=0
Move the expression to the right side
−2y=45x
Divide both sides
y=−245x
y=−245x,13=−9y−11x
Write the equation in slope-intercept form
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Evaluate
13=−9y−11x
Move the expression to the left side
13+9y=−11x
Move the constant to the right side
9y=−11x−13
Divide both sides
y=−911x−913
y=−245x,y=−911x−913
Since the line is in slope-intercept form, the coefficient −245 is the slope of the line
−245,y=−911x−913
Since the line is in slope-intercept form, the coefficient −911 is the slope of the line
−245,−911
The slopes are different, so the lines aren't parallel. We'll multiply the slopes to check their relationship
−245(−911)
Multiplying or dividing an even number of negative terms equals a positive
245×911
Reduce the numbers
25×11
Multiply the numbers
25×11
Multiply the numbers
255
Solution
Neither parallel nor perpendicular
Show Solution
