8x-25=7x-21

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Solution for 8x-25=7x-21 equation:


Simplifying
8x + -25 = 7x + -21

Reorder the terms:
-25 + 8x = 7x + -21

Reorder the terms:
-25 + 8x = -21 + 7x

Solving
-25 + 8x = -21 + 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 + 8x + -7x = -21 + 7x + -7x

Combine like terms: 8x + -7x = 1x
-25 + 1x = -21 + 7x + -7x

Combine like terms: 7x + -7x = 0
-25 + 1x = -21 + 0
-25 + 1x = -21

Add '25' to each side of the equation.
-25 + 25 + 1x = -21 + 25

Combine like terms: -25 + 25 = 0
0 + 1x = -21 + 25
1x = -21 + 25

Combine like terms: -21 + 25 = 4
1x = 4

Divide each side by '1'.
x = 4

Simplifying
x = 4

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