75=3(10+x)

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Solution for 75=3(10+x) equation:



75=3(10+x)
We move all terms to the left:
75-(3(10+x))=0
We add all the numbers together, and all the variables
-(3(x+10))+75=0
We calculate terms in parentheses: -(3(x+10)), so:
3(x+10)
We multiply parentheses
3x+30
Back to the equation:
-(3x+30)
We get rid of parentheses
-3x-30+75=0
We add all the numbers together, and all the variables
-3x+45=0
We move all terms containing x to the left, all other terms to the right
-3x=-45
x=-45/-3
x=+15

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