2x-7x-78=0

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Solution for 2x-7x-78=0 equation:


Simplifying
2x + -7x + -78 = 0

Reorder the terms:
-78 + 2x + -7x = 0

Combine like terms: 2x + -7x = -5x
-78 + -5x = 0

Solving
-78 + -5x = 0

Solving for variable 'x'.

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

Add '78' to each side of the equation.
-78 + 78 + -5x = 0 + 78

Combine like terms: -78 + 78 = 0
0 + -5x = 0 + 78
-5x = 0 + 78

Combine like terms: 0 + 78 = 78
-5x = 78

Divide each side by '-5'.
x = -15.6

Simplifying
x = -15.6

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