3x-(-x)+1=3(-x)+18

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Solution for 3x-(-x)+1=3(-x)+18 equation:


Simplifying
3x + -1(-1x) + 1 = 3(-1x) + 18

Remove parenthesis around (-1x)
3x + -1 * -1x + 1 = 3(-1x) + 18

Multiply -1 * -1
3x + 1x + 1 = 3(-1x) + 18

Reorder the terms:
1 + 3x + 1x = 3(-1x) + 18

Combine like terms: 3x + 1x = 4x
1 + 4x = 3(-1x) + 18

Remove parenthesis around (-1x)
1 + 4x = 3 * -1x + 18

Multiply 3 * -1
1 + 4x = -3x + 18

Reorder the terms:
1 + 4x = 18 + -3x

Solving
1 + 4x = 18 + -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 + 4x + 3x = 18 + -3x + 3x

Combine like terms: 4x + 3x = 7x
1 + 7x = 18 + -3x + 3x

Combine like terms: -3x + 3x = 0
1 + 7x = 18 + 0
1 + 7x = 18

Add '-1' to each side of the equation.
1 + -1 + 7x = 18 + -1

Combine like terms: 1 + -1 = 0
0 + 7x = 18 + -1
7x = 18 + -1

Combine like terms: 18 + -1 = 17
7x = 17

Divide each side by '7'.
x = 2.428571429

Simplifying
x = 2.428571429

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