6x-15=-7x-21

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Solution for 6x-15=-7x-21 equation:


Simplifying
6x + -15 = -7x + -21

Reorder the terms:
-15 + 6x = -7x + -21

Reorder the terms:
-15 + 6x = -21 + -7x

Solving
-15 + 6x = -21 + -7x

Solving for variable 'x'.

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

Add '7x' to each side of the equation.
-15 + 6x + 7x = -21 + -7x + 7x

Combine like terms: 6x + 7x = 13x
-15 + 13x = -21 + -7x + 7x

Combine like terms: -7x + 7x = 0
-15 + 13x = -21 + 0
-15 + 13x = -21

Add '15' to each side of the equation.
-15 + 15 + 13x = -21 + 15

Combine like terms: -15 + 15 = 0
0 + 13x = -21 + 15
13x = -21 + 15

Combine like terms: -21 + 15 = -6
13x = -6

Divide each side by '13'.
x = -0.4615384615

Simplifying
x = -0.4615384615

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