x+45=4(5-x)

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Solution for x+45=4(5-x) equation:


Simplifying
x + 45 = 4(5 + -1x)

Reorder the terms:
45 + x = 4(5 + -1x)
45 + x = (5 * 4 + -1x * 4)
45 + x = (20 + -4x)

Solving
45 + x = 20 + -4x

Solving for variable 'x'.

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

Add '4x' to each side of the equation.
45 + x + 4x = 20 + -4x + 4x

Combine like terms: x + 4x = 5x
45 + 5x = 20 + -4x + 4x

Combine like terms: -4x + 4x = 0
45 + 5x = 20 + 0
45 + 5x = 20

Add '-45' to each side of the equation.
45 + -45 + 5x = 20 + -45

Combine like terms: 45 + -45 = 0
0 + 5x = 20 + -45
5x = 20 + -45

Combine like terms: 20 + -45 = -25
5x = -25

Divide each side by '5'.
x = -5

Simplifying
x = -5

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