-3x-9=4x-15

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Solution for -3x-9=4x-15 equation:


Simplifying
-3x + -9 = 4x + -15

Reorder the terms:
-9 + -3x = 4x + -15

Reorder the terms:
-9 + -3x = -15 + 4x

Solving
-9 + -3x = -15 + 4x

Solving for variable 'x'.

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

Add '-4x' to each side of the equation.
-9 + -3x + -4x = -15 + 4x + -4x

Combine like terms: -3x + -4x = -7x
-9 + -7x = -15 + 4x + -4x

Combine like terms: 4x + -4x = 0
-9 + -7x = -15 + 0
-9 + -7x = -15

Add '9' to each side of the equation.
-9 + 9 + -7x = -15 + 9

Combine like terms: -9 + 9 = 0
0 + -7x = -15 + 9
-7x = -15 + 9

Combine like terms: -15 + 9 = -6
-7x = -6

Divide each side by '-7'.
x = 0.8571428571

Simplifying
x = 0.8571428571

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