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

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


Simplifying
-3(2 + -5x) + 5(-4x + -3) = -5x + -7x
(2 * -3 + -5x * -3) + 5(-4x + -3) = -5x + -7x
(-6 + 15x) + 5(-4x + -3) = -5x + -7x

Reorder the terms:
-6 + 15x + 5(-3 + -4x) = -5x + -7x
-6 + 15x + (-3 * 5 + -4x * 5) = -5x + -7x
-6 + 15x + (-15 + -20x) = -5x + -7x

Reorder the terms:
-6 + -15 + 15x + -20x = -5x + -7x

Combine like terms: -6 + -15 = -21
-21 + 15x + -20x = -5x + -7x

Combine like terms: 15x + -20x = -5x
-21 + -5x = -5x + -7x

Combine like terms: -5x + -7x = -12x
-21 + -5x = -12x

Solving
-21 + -5x = -12x

Solving for variable 'x'.

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

Add '12x' to each side of the equation.
-21 + -5x + 12x = -12x + 12x

Combine like terms: -5x + 12x = 7x
-21 + 7x = -12x + 12x

Combine like terms: -12x + 12x = 0
-21 + 7x = 0

Add '21' to each side of the equation.
-21 + 21 + 7x = 0 + 21

Combine like terms: -21 + 21 = 0
0 + 7x = 0 + 21
7x = 0 + 21

Combine like terms: 0 + 21 = 21
7x = 21

Divide each side by '7'.
x = 3

Simplifying
x = 3

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