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

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


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

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

Reorder the terms:
7 + 3x = 20 + -3x

Solving
7 + 3x = 20 + -3x

Solving for variable 'x'.

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

Add '3x' to each side of the equation.
7 + 3x + 3x = 20 + -3x + 3x

Combine like terms: 3x + 3x = 6x
7 + 6x = 20 + -3x + 3x

Combine like terms: -3x + 3x = 0
7 + 6x = 20 + 0
7 + 6x = 20

Add '-7' to each side of the equation.
7 + -7 + 6x = 20 + -7

Combine like terms: 7 + -7 = 0
0 + 6x = 20 + -7
6x = 20 + -7

Combine like terms: 20 + -7 = 13
6x = 13

Divide each side by '6'.
x = 2.166666667

Simplifying
x = 2.166666667

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