21+4x=-7+6(x+3)

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Solution for 21+4x=-7+6(x+3) equation:


Simplifying
21 + 4x = -7 + 6(x + 3)

Reorder the terms:
21 + 4x = -7 + 6(3 + x)
21 + 4x = -7 + (3 * 6 + x * 6)
21 + 4x = -7 + (18 + 6x)

Combine like terms: -7 + 18 = 11
21 + 4x = 11 + 6x

Solving
21 + 4x = 11 + 6x

Solving for variable 'x'.

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

Add '-6x' to each side of the equation.
21 + 4x + -6x = 11 + 6x + -6x

Combine like terms: 4x + -6x = -2x
21 + -2x = 11 + 6x + -6x

Combine like terms: 6x + -6x = 0
21 + -2x = 11 + 0
21 + -2x = 11

Add '-21' to each side of the equation.
21 + -21 + -2x = 11 + -21

Combine like terms: 21 + -21 = 0
0 + -2x = 11 + -21
-2x = 11 + -21

Combine like terms: 11 + -21 = -10
-2x = -10

Divide each side by '-2'.
x = 5

Simplifying
x = 5

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