-25-x=7x+20

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


Simplifying
-25 + -1x = 7x + 20

Reorder the terms:
-25 + -1x = 20 + 7x

Solving
-25 + -1x = 20 + 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.
-25 + -1x + -7x = 20 + 7x + -7x

Combine like terms: -1x + -7x = -8x
-25 + -8x = 20 + 7x + -7x

Combine like terms: 7x + -7x = 0
-25 + -8x = 20 + 0
-25 + -8x = 20

Add '25' to each side of the equation.
-25 + 25 + -8x = 20 + 25

Combine like terms: -25 + 25 = 0
0 + -8x = 20 + 25
-8x = 20 + 25

Combine like terms: 20 + 25 = 45
-8x = 45

Divide each side by '-8'.
x = -5.625

Simplifying
x = -5.625

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