21+x=5(1-3x)

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Solution for 21+x=5(1-3x) equation:


Simplifying
21 + x = 5(1 + -3x)
21 + x = (1 * 5 + -3x * 5)
21 + x = (5 + -15x)

Solving
21 + x = 5 + -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.
21 + x + 15x = 5 + -15x + 15x

Combine like terms: x + 15x = 16x
21 + 16x = 5 + -15x + 15x

Combine like terms: -15x + 15x = 0
21 + 16x = 5 + 0
21 + 16x = 5

Add '-21' to each side of the equation.
21 + -21 + 16x = 5 + -21

Combine like terms: 21 + -21 = 0
0 + 16x = 5 + -21
16x = 5 + -21

Combine like terms: 5 + -21 = -16
16x = -16

Divide each side by '16'.
x = -1

Simplifying
x = -1

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