3x-7x-5=15

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Solution for 3x-7x-5=15 equation:


Simplifying
3x + -7x + -5 = 15

Reorder the terms:
-5 + 3x + -7x = 15

Combine like terms: 3x + -7x = -4x
-5 + -4x = 15

Solving
-5 + -4x = 15

Solving for variable 'x'.

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

Add '5' to each side of the equation.
-5 + 5 + -4x = 15 + 5

Combine like terms: -5 + 5 = 0
0 + -4x = 15 + 5
-4x = 15 + 5

Combine like terms: 15 + 5 = 20
-4x = 20

Divide each side by '-4'.
x = -5

Simplifying
x = -5

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