6-3x-4x+15=-7

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Solution for 6-3x-4x+15=-7 equation:


Simplifying
6 + -3x + -4x + 15 = -7

Reorder the terms:
6 + 15 + -3x + -4x = -7

Combine like terms: 6 + 15 = 21
21 + -3x + -4x = -7

Combine like terms: -3x + -4x = -7x
21 + -7x = -7

Solving
21 + -7x = -7

Solving for variable 'x'.

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

Add '-21' to each side of the equation.
21 + -21 + -7x = -7 + -21

Combine like terms: 21 + -21 = 0
0 + -7x = -7 + -21
-7x = -7 + -21

Combine like terms: -7 + -21 = -28
-7x = -28

Divide each side by '-7'.
x = 4

Simplifying
x = 4

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