4(2a+-9)=5(3a+-7)-1

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Solution for 4(2a+-9)=5(3a+-7)-1 equation:



4(2a+-9)=5(3a+-7)-1
We move all terms to the left:
4(2a+-9)-(5(3a+-7)-1)=0
We add all the numbers together, and all the variables
4(2a-9)-(5(3a-7)-1)=0
We multiply parentheses
8a-(5(3a-7)-1)-36=0
We calculate terms in parentheses: -(5(3a-7)-1), so:
5(3a-7)-1
We multiply parentheses
15a-35-1
We add all the numbers together, and all the variables
15a-36
Back to the equation:
-(15a-36)
We get rid of parentheses
8a-15a+36-36=0
We add all the numbers together, and all the variables
-7a=0
a=0/-7
a=0

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