x+43=3x+21

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Solution for x+43=3x+21 equation:


Simplifying
x + 43 = 3x + 21

Reorder the terms:
43 + x = 3x + 21

Reorder the terms:
43 + x = 21 + 3x

Solving
43 + x = 21 + 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.
43 + x + -3x = 21 + 3x + -3x

Combine like terms: x + -3x = -2x
43 + -2x = 21 + 3x + -3x

Combine like terms: 3x + -3x = 0
43 + -2x = 21 + 0
43 + -2x = 21

Add '-43' to each side of the equation.
43 + -43 + -2x = 21 + -43

Combine like terms: 43 + -43 = 0
0 + -2x = 21 + -43
-2x = 21 + -43

Combine like terms: 21 + -43 = -22
-2x = -22

Divide each side by '-2'.
x = 11

Simplifying
x = 11

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