3x+9=-21-7

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


Simplifying
3x + 9 = -21 + -7

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

Combine like terms: -21 + -7 = -28
9 + 3x = -28

Solving
9 + 3x = -28

Solving for variable 'x'.

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

Add '-9' to each side of the equation.
9 + -9 + 3x = -28 + -9

Combine like terms: 9 + -9 = 0
0 + 3x = -28 + -9
3x = -28 + -9

Combine like terms: -28 + -9 = -37
3x = -37

Divide each side by '3'.
x = -12.33333333

Simplifying
x = -12.33333333

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