-7x+21=-4+3x

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Solution for -7x+21=-4+3x equation:


Simplifying
-7x + 21 = -4 + 3x

Reorder the terms:
21 + -7x = -4 + 3x

Solving
21 + -7x = -4 + 3x

Solving for variable 'x'.

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

Add '-3x' to each side of the equation.
21 + -7x + -3x = -4 + 3x + -3x

Combine like terms: -7x + -3x = -10x
21 + -10x = -4 + 3x + -3x

Combine like terms: 3x + -3x = 0
21 + -10x = -4 + 0
21 + -10x = -4

Add '-21' to each side of the equation.
21 + -21 + -10x = -4 + -21

Combine like terms: 21 + -21 = 0
0 + -10x = -4 + -21
-10x = -4 + -21

Combine like terms: -4 + -21 = -25
-10x = -25

Divide each side by '-10'.
x = 2.5

Simplifying
x = 2.5

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