7x-84=-3x-4

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Solution for 7x-84=-3x-4 equation:


Simplifying
7x + -84 = -3x + -4

Reorder the terms:
-84 + 7x = -3x + -4

Reorder the terms:
-84 + 7x = -4 + -3x

Solving
-84 + 7x = -4 + -3x

Solving for variable 'x'.

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

Add '3x' to each side of the equation.
-84 + 7x + 3x = -4 + -3x + 3x

Combine like terms: 7x + 3x = 10x
-84 + 10x = -4 + -3x + 3x

Combine like terms: -3x + 3x = 0
-84 + 10x = -4 + 0
-84 + 10x = -4

Add '84' to each side of the equation.
-84 + 84 + 10x = -4 + 84

Combine like terms: -84 + 84 = 0
0 + 10x = -4 + 84
10x = -4 + 84

Combine like terms: -4 + 84 = 80
10x = 80

Divide each side by '10'.
x = 8

Simplifying
x = 8

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