x+4(5+x)=40

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Solution for x+4(5+x)=40 equation:



x+4(5+x)=40
We move all terms to the left:
x+4(5+x)-(40)=0
We add all the numbers together, and all the variables
x+4(x+5)-40=0
We multiply parentheses
x+4x+20-40=0
We add all the numbers together, and all the variables
5x-20=0
We move all terms containing x to the left, all other terms to the right
5x=20
x=20/5
x=4

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