4x+20=7x-25

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Solution for 4x+20=7x-25 equation:


Simplifying
4x + 20 = 7x + -25

Reorder the terms:
20 + 4x = 7x + -25

Reorder the terms:
20 + 4x = -25 + 7x

Solving
20 + 4x = -25 + 7x

Solving for variable 'x'.

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

Add '-7x' to each side of the equation.
20 + 4x + -7x = -25 + 7x + -7x

Combine like terms: 4x + -7x = -3x
20 + -3x = -25 + 7x + -7x

Combine like terms: 7x + -7x = 0
20 + -3x = -25 + 0
20 + -3x = -25

Add '-20' to each side of the equation.
20 + -20 + -3x = -25 + -20

Combine like terms: 20 + -20 = 0
0 + -3x = -25 + -20
-3x = -25 + -20

Combine like terms: -25 + -20 = -45
-3x = -45

Divide each side by '-3'.
x = 15

Simplifying
x = 15

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