4(2x+5)-21=-2(3x-6)+15

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Solution for 4(2x+5)-21=-2(3x-6)+15 equation:


Simplifying
4(2x + 5) + -21 = -2(3x + -6) + 15

Reorder the terms:
4(5 + 2x) + -21 = -2(3x + -6) + 15
(5 * 4 + 2x * 4) + -21 = -2(3x + -6) + 15
(20 + 8x) + -21 = -2(3x + -6) + 15

Reorder the terms:
20 + -21 + 8x = -2(3x + -6) + 15

Combine like terms: 20 + -21 = -1
-1 + 8x = -2(3x + -6) + 15

Reorder the terms:
-1 + 8x = -2(-6 + 3x) + 15
-1 + 8x = (-6 * -2 + 3x * -2) + 15
-1 + 8x = (12 + -6x) + 15

Reorder the terms:
-1 + 8x = 12 + 15 + -6x

Combine like terms: 12 + 15 = 27
-1 + 8x = 27 + -6x

Solving
-1 + 8x = 27 + -6x

Solving for variable 'x'.

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

Add '6x' to each side of the equation.
-1 + 8x + 6x = 27 + -6x + 6x

Combine like terms: 8x + 6x = 14x
-1 + 14x = 27 + -6x + 6x

Combine like terms: -6x + 6x = 0
-1 + 14x = 27 + 0
-1 + 14x = 27

Add '1' to each side of the equation.
-1 + 1 + 14x = 27 + 1

Combine like terms: -1 + 1 = 0
0 + 14x = 27 + 1
14x = 27 + 1

Combine like terms: 27 + 1 = 28
14x = 28

Divide each side by '14'.
x = 2

Simplifying
x = 2

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