7x-3x+7=3(x+4)20

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Solution for 7x-3x+7=3(x+4)20 equation:


Simplifying
7x + -3x + 7 = 3(x + 4) * 20

Reorder the terms:
7 + 7x + -3x = 3(x + 4) * 20

Combine like terms: 7x + -3x = 4x
7 + 4x = 3(x + 4) * 20

Reorder the terms:
7 + 4x = 3(4 + x) * 20

Reorder the terms for easier multiplication:
7 + 4x = 3 * 20(4 + x)

Multiply 3 * 20
7 + 4x = 60(4 + x)
7 + 4x = (4 * 60 + x * 60)
7 + 4x = (240 + 60x)

Solving
7 + 4x = 240 + 60x

Solving for variable 'x'.

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

Add '-60x' to each side of the equation.
7 + 4x + -60x = 240 + 60x + -60x

Combine like terms: 4x + -60x = -56x
7 + -56x = 240 + 60x + -60x

Combine like terms: 60x + -60x = 0
7 + -56x = 240 + 0
7 + -56x = 240

Add '-7' to each side of the equation.
7 + -7 + -56x = 240 + -7

Combine like terms: 7 + -7 = 0
0 + -56x = 240 + -7
-56x = 240 + -7

Combine like terms: 240 + -7 = 233
-56x = 233

Divide each side by '-56'.
x = -4.160714286

Simplifying
x = -4.160714286

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