2(5-4x)-5(-3x+8)=x+7-7

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Solution for 2(5-4x)-5(-3x+8)=x+7-7 equation:


Simplifying
2(5 + -4x) + -5(-3x + 8) = x + 7 + -7
(5 * 2 + -4x * 2) + -5(-3x + 8) = x + 7 + -7
(10 + -8x) + -5(-3x + 8) = x + 7 + -7

Reorder the terms:
10 + -8x + -5(8 + -3x) = x + 7 + -7
10 + -8x + (8 * -5 + -3x * -5) = x + 7 + -7
10 + -8x + (-40 + 15x) = x + 7 + -7

Reorder the terms:
10 + -40 + -8x + 15x = x + 7 + -7

Combine like terms: 10 + -40 = -30
-30 + -8x + 15x = x + 7 + -7

Combine like terms: -8x + 15x = 7x
-30 + 7x = x + 7 + -7

Reorder the terms:
-30 + 7x = 7 + -7 + x

Combine like terms: 7 + -7 = 0
-30 + 7x = 0 + x
-30 + 7x = x

Solving
-30 + 7x = x

Solving for variable 'x'.

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

Add '-1x' to each side of the equation.
-30 + 7x + -1x = x + -1x

Combine like terms: 7x + -1x = 6x
-30 + 6x = x + -1x

Combine like terms: x + -1x = 0
-30 + 6x = 0

Add '30' to each side of the equation.
-30 + 30 + 6x = 0 + 30

Combine like terms: -30 + 30 = 0
0 + 6x = 0 + 30
6x = 0 + 30

Combine like terms: 0 + 30 = 30
6x = 30

Divide each side by '6'.
x = 5

Simplifying
x = 5

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