7x+3x=30+10

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Solution for 7x+3x=30+10 equation: 



7x+3x=30+10

We move all terms to the left:

7x+3x-(30+10)=0

We add all the numbers together, and all the variables

7x+3x-40=0

We add all the numbers together, and all the variables

10x-40=0

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

10x=40

x=40/10

x=4

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