2+-1=3(x+7)

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


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

Combine like terms: 2 + -1 = 1
1 = 3(x + 7)

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

Solving
1 = 21 + 3x

Solving for variable 'x'.

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

Add '-3x' to each side of the equation.
1 + -3x = 21 + 3x + -3x

Combine like terms: 3x + -3x = 0
1 + -3x = 21 + 0
1 + -3x = 21

Add '-1' to each side of the equation.
1 + -1 + -3x = 21 + -1

Combine like terms: 1 + -1 = 0
0 + -3x = 21 + -1
-3x = 21 + -1

Combine like terms: 21 + -1 = 20
-3x = 20

Divide each side by '-3'.
x = -6.666666667

Simplifying
x = -6.666666667

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