7x-3-8x=4

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Solution for 7x-3-8x=4 equation: 


Simplifying
7x + -3 + -8x = 4

Reorder the terms:
-3 + 7x + -8x = 4

Combine like terms: 7x + -8x = -1x
-3 + -1x = 4

Solving
-3 + -1x = 4

Solving for variable 'x'.

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

Add '3' to each side of the equation.
-3 + 3 + -1x = 4 + 3

Combine like terms: -3 + 3 = 0
0 + -1x = 4 + 3
-1x = 4 + 3

Combine like terms: 4 + 3 = 7
-1x = 7

Divide each side by '-1'.
x = -7

Simplifying
x = -7

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