7x+19=9x+21

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Solution for 7x+19=9x+21 equation:


Simplifying
7x + 19 = 9x + 21

Reorder the terms:
19 + 7x = 9x + 21

Reorder the terms:
19 + 7x = 21 + 9x

Solving
19 + 7x = 21 + 9x

Solving for variable 'x'.

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

Add '-9x' to each side of the equation.
19 + 7x + -9x = 21 + 9x + -9x

Combine like terms: 7x + -9x = -2x
19 + -2x = 21 + 9x + -9x

Combine like terms: 9x + -9x = 0
19 + -2x = 21 + 0
19 + -2x = 21

Add '-19' to each side of the equation.
19 + -19 + -2x = 21 + -19

Combine like terms: 19 + -19 = 0
0 + -2x = 21 + -19
-2x = 21 + -19

Combine like terms: 21 + -19 = 2
-2x = 2

Divide each side by '-2'.
x = -1

Simplifying
x = -1

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