-20=-7x+3(x-5)

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Solution for -20=-7x+3(x-5) equation:


Simplifying
-20 = -7x + 3(x + -5)

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

Reorder the terms:
-20 = -15 + -7x + 3x

Combine like terms: -7x + 3x = -4x
-20 = -15 + -4x

Solving
-20 = -15 + -4x

Solving for variable 'x'.

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

Add '4x' to each side of the equation.
-20 + 4x = -15 + -4x + 4x

Combine like terms: -4x + 4x = 0
-20 + 4x = -15 + 0
-20 + 4x = -15

Add '20' to each side of the equation.
-20 + 20 + 4x = -15 + 20

Combine like terms: -20 + 20 = 0
0 + 4x = -15 + 20
4x = -15 + 20

Combine like terms: -15 + 20 = 5
4x = 5

Divide each side by '4'.
x = 1.25

Simplifying
x = 1.25

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