-3(x+7)=3(2x+1)

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Solution for -3(x+7)=3(2x+1) equation:


Simplifying
-3(x + 7) = 3(2x + 1)

Reorder the terms:
-3(7 + x) = 3(2x + 1)
(7 * -3 + x * -3) = 3(2x + 1)
(-21 + -3x) = 3(2x + 1)

Reorder the terms:
-21 + -3x = 3(1 + 2x)
-21 + -3x = (1 * 3 + 2x * 3)
-21 + -3x = (3 + 6x)

Solving
-21 + -3x = 3 + 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 + -3x + -6x = 3 + 6x + -6x

Combine like terms: -3x + -6x = -9x
-21 + -9x = 3 + 6x + -6x

Combine like terms: 6x + -6x = 0
-21 + -9x = 3 + 0
-21 + -9x = 3

Add '21' to each side of the equation.
-21 + 21 + -9x = 3 + 21

Combine like terms: -21 + 21 = 0
0 + -9x = 3 + 21
-9x = 3 + 21

Combine like terms: 3 + 21 = 24
-9x = 24

Divide each side by '-9'.
x = -2.666666667

Simplifying
x = -2.666666667

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