03-5x=7x+21

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Solution for 03-5x=7x+21 equation:


Simplifying
3 + -5x = 7x + 21

Reorder the terms:
3 + -5x = 21 + 7x

Solving
3 + -5x = 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.
3 + -5x + -7x = 21 + 7x + -7x

Combine like terms: -5x + -7x = -12x
3 + -12x = 21 + 7x + -7x

Combine like terms: 7x + -7x = 0
3 + -12x = 21 + 0
3 + -12x = 21

Add '-3' to each side of the equation.
3 + -3 + -12x = 21 + -3

Combine like terms: 3 + -3 = 0
0 + -12x = 21 + -3
-12x = 21 + -3

Combine like terms: 21 + -3 = 18
-12x = 18

Divide each side by '-12'.
x = -1.5

Simplifying
x = -1.5

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