-21x+5=-7x-30

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Solution for -21x+5=-7x-30 equation:


Simplifying
-21x + 5 = -7x + -30

Reorder the terms:
5 + -21x = -7x + -30

Reorder the terms:
5 + -21x = -30 + -7x

Solving
5 + -21x = -30 + -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.
5 + -21x + 7x = -30 + -7x + 7x

Combine like terms: -21x + 7x = -14x
5 + -14x = -30 + -7x + 7x

Combine like terms: -7x + 7x = 0
5 + -14x = -30 + 0
5 + -14x = -30

Add '-5' to each side of the equation.
5 + -5 + -14x = -30 + -5

Combine like terms: 5 + -5 = 0
0 + -14x = -30 + -5
-14x = -30 + -5

Combine like terms: -30 + -5 = -35
-14x = -35

Divide each side by '-14'.
x = 2.5

Simplifying
x = 2.5

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