(3x+15)=(4x-20)

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Solution for (3x+15)=(4x-20) equation:


Simplifying
(3x + 15) = (4x + -20)

Reorder the terms:
(15 + 3x) = (4x + -20)

Remove parenthesis around (15 + 3x)
15 + 3x = (4x + -20)

Reorder the terms:
15 + 3x = (-20 + 4x)

Remove parenthesis around (-20 + 4x)
15 + 3x = -20 + 4x

Solving
15 + 3x = -20 + 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.
15 + 3x + -4x = -20 + 4x + -4x

Combine like terms: 3x + -4x = -1x
15 + -1x = -20 + 4x + -4x

Combine like terms: 4x + -4x = 0
15 + -1x = -20 + 0
15 + -1x = -20

Add '-15' to each side of the equation.
15 + -15 + -1x = -20 + -15

Combine like terms: 15 + -15 = 0
0 + -1x = -20 + -15
-1x = -20 + -15

Combine like terms: -20 + -15 = -35
-1x = -35

Divide each side by '-1'.
x = 35

Simplifying
x = 35

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