Question
Solve the equation
y=13
Evaluate
900−6(20−y)=66y
Move the expression to the left side
900−6(20−y)−66y=0
Calculate
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Evaluate
900−6(20−y)−66y
Expand the expression
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Calculate
−6(20−y)
Apply the distributive property
−6×20−(−6y)
Multiply the numbers
−120−(−6y)
If a negative sign or a subtraction symbol appears outside parentheses, remove the parentheses and change the sign of every term within the parentheses
−120+6y
900−120+6y−66y
Subtract the numbers
780+6y−66y
Subtract the terms
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Evaluate
6y−66y
Collect like terms by calculating the sum or difference of their coefficients
(6−66)y
Subtract the numbers
−60y
780−60y
780−60y=0
Move the constant to the right-hand side and change its sign
−60y=0−780
Removing 0 doesn't change the value,so remove it from the expression
−60y=−780
Change the signs on both sides of the equation
60y=780
Divide both sides
6060y=60780
Divide the numbers
y=60780
Solution
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Evaluate
60780
Reduce the numbers
113
Calculate
13
y=13
Show Solution

Rewrite the equation
Rewrite in standard form
Rewrite in slope-intercept form
y=13
Evaluate
900−6(20−y)=66y
Evaluate
More Steps

Evaluate
900−6(20−y)
Expand the expression
More Steps

Calculate
−6(20−y)
Apply the distributive property
−6×20−(−6y)
Multiply the numbers
−120−(−6y)
If a negative sign or a subtraction symbol appears outside parentheses, remove the parentheses and change the sign of every term within the parentheses
−120+6y
900−120+6y
Subtract the numbers
780+6y
780+6y=66y
Move the variable to the left side
780−60y=0
Move the constant to the right side
−60y=−780
Multiply both sides
60y=780
Solution
y=13
Show Solution
