7x+30=4x+15

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Solution for 7x+30=4x+15 equation: 



7x+30=4x+15

We move all terms to the left:

7x+30-(4x+15)=0

We get rid of parentheses

7x-4x-15+30=0

We add all the numbers together, and all the variables

3x+15=0

We move all terms containing x to the left, all other terms to the right

3x=-15

x=-15/3

x=-5

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