-3x+4-9=-21+7

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Solution for -3x+4-9=-21+7 equation:


Simplifying
-3x + 4 + -9 = -21 + 7

Reorder the terms:
4 + -9 + -3x = -21 + 7

Combine like terms: 4 + -9 = -5
-5 + -3x = -21 + 7

Combine like terms: -21 + 7 = -14
-5 + -3x = -14

Solving
-5 + -3x = -14

Solving for variable 'x'.

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

Add '5' to each side of the equation.
-5 + 5 + -3x = -14 + 5

Combine like terms: -5 + 5 = 0
0 + -3x = -14 + 5
-3x = -14 + 5

Combine like terms: -14 + 5 = -9
-3x = -9

Divide each side by '-3'.
x = 3

Simplifying
x = 3

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