21-7=-5(3x+4)

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Solution for 21-7=-5(3x+4) equation:


Simplifying
21 + -7 = -5(3x + 4)

Combine like terms: 21 + -7 = 14
14 = -5(3x + 4)

Reorder the terms:
14 = -5(4 + 3x)
14 = (4 * -5 + 3x * -5)
14 = (-20 + -15x)

Solving
14 = -20 + -15x

Solving for variable 'x'.

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

Add '15x' to each side of the equation.
14 + 15x = -20 + -15x + 15x

Combine like terms: -15x + 15x = 0
14 + 15x = -20 + 0
14 + 15x = -20

Add '-14' to each side of the equation.
14 + -14 + 15x = -20 + -14

Combine like terms: 14 + -14 = 0
0 + 15x = -20 + -14
15x = -20 + -14

Combine like terms: -20 + -14 = -34
15x = -34

Divide each side by '15'.
x = -2.266666667

Simplifying
x = -2.266666667

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