-21=5(x+3)+4

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


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

Reorder the terms:
-21 = 5(3 + x) + 4
-21 = (3 * 5 + x * 5) + 4
-21 = (15 + 5x) + 4

Reorder the terms:
-21 = 15 + 4 + 5x

Combine like terms: 15 + 4 = 19
-21 = 19 + 5x

Solving
-21 = 19 + 5x

Solving for variable 'x'.

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

Add '-5x' to each side of the equation.
-21 + -5x = 19 + 5x + -5x

Combine like terms: 5x + -5x = 0
-21 + -5x = 19 + 0
-21 + -5x = 19

Add '21' to each side of the equation.
-21 + 21 + -5x = 19 + 21

Combine like terms: -21 + 21 = 0
0 + -5x = 19 + 21
-5x = 19 + 21

Combine like terms: 19 + 21 = 40
-5x = 40

Divide each side by '-5'.
x = -8

Simplifying
x = -8

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