Question
Solve the equation
z=31
Evaluate
1233−12z=122
Cancel out the common factor 3
411−12z=122
Cancel out the common factor 2
411−12z=61
Move the constant to the right-hand side and change its sign
−12z=61−411
Subtract the numbers
More Steps

Evaluate
61−411
Reduce fractions to a common denominator
6×22−4×311×3
Multiply the numbers
122−4×311×3
Multiply the numbers
122−1211×3
Write all numerators above the common denominator
122−11×3
Multiply the numbers
122−33
Subtract the numbers
12−31
Use b−a=−ba=−ba to rewrite the fraction
−1231
−12z=−1231
Rewrite the expression
12−z=12−31
Multiply both sides of the equation by 12
12−z×12=12−31×12
Multiply the terms
−z=−31
Solution
z=31
Show Solution
