Question

What is the answer to this equation
1) 4(x + 5) = 40

Answer 1

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`4(x + 5) = 40`

Divide sides by 4

`(4)/(4) * (x + 5) = (40)/(4) \\`

`x + 5 = 10`

Subtract sides 5

`x + 5 - 5 = 10 - 5`

`x = 5`

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CHECK :

`4(5 + 5) = 40`

`4 * 10 = 40`

`40 = 40`

Thus the solution is correct.

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Done...