3x-7x-4=84

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


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

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

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

Solving
-4 + -4x = 84

Solving for variable 'x'.

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

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

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

Combine like terms: 84 + 4 = 88
-4x = 88

Divide each side by '-4'.
x = -22

Simplifying
x = -22

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