x+4(x-5)=40

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


Simplifying
x + 4(x + -5) = 40

Reorder the terms:
x + 4(-5 + x) = 40
x + (-5 * 4 + x * 4) = 40
x + (-20 + 4x) = 40

Reorder the terms:
-20 + x + 4x = 40

Combine like terms: x + 4x = 5x
-20 + 5x = 40

Solving
-20 + 5x = 40

Solving for variable 'x'.

Move all terms containing x to the left, all other terms to the right.

Add '20' to each side of the equation.
-20 + 20 + 5x = 40 + 20

Combine like terms: -20 + 20 = 0
0 + 5x = 40 + 20
5x = 40 + 20

Combine like terms: 40 + 20 = 60
5x = 60

Divide each side by '5'.
x = 12

Simplifying
x = 12

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