3x+4(x+5)=720

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Solution for 3x+4(x+5)=720 equation: 



3x+4(x+5)=720

We move all terms to the left:

3x+4(x+5)-(720)=0

We multiply parentheses

3x+4x+20-720=0

We add all the numbers together, and all the variables

7x-700=0

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

7x=700

x=700/7

x=100

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