7x-9=8x+4

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Solution for 7x-9=8x+4 equation:


Simplifying
7x + -9 = 8x + 4

Reorder the terms:
-9 + 7x = 8x + 4

Reorder the terms:
-9 + 7x = 4 + 8x

Solving
-9 + 7x = 4 + 8x

Solving for variable 'x'.

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

Add '-8x' to each side of the equation.
-9 + 7x + -8x = 4 + 8x + -8x

Combine like terms: 7x + -8x = -1x
-9 + -1x = 4 + 8x + -8x

Combine like terms: 8x + -8x = 0
-9 + -1x = 4 + 0
-9 + -1x = 4

Add '9' to each side of the equation.
-9 + 9 + -1x = 4 + 9

Combine like terms: -9 + 9 = 0
0 + -1x = 4 + 9
-1x = 4 + 9

Combine like terms: 4 + 9 = 13
-1x = 13

Divide each side by '-1'.
x = -13

Simplifying
x = -13

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