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 = 20
5x = 20

Divide each side by '5'.
x = 4

Simplifying
x = 4

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