(3x+17)-(2x-18)=21

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Solution for (3x+17)-(2x-18)=21 equation:


Simplifying
(3x + 17) + -1(2x + -18) = 21

Reorder the terms:
(17 + 3x) + -1(2x + -18) = 21

Remove parenthesis around (17 + 3x)
17 + 3x + -1(2x + -18) = 21

Reorder the terms:
17 + 3x + -1(-18 + 2x) = 21
17 + 3x + (-18 * -1 + 2x * -1) = 21
17 + 3x + (18 + -2x) = 21

Reorder the terms:
17 + 18 + 3x + -2x = 21

Combine like terms: 17 + 18 = 35
35 + 3x + -2x = 21

Combine like terms: 3x + -2x = 1x
35 + 1x = 21

Solving
35 + 1x = 21

Solving for variable 'x'.

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

Add '-35' to each side of the equation.
35 + -35 + 1x = 21 + -35

Combine like terms: 35 + -35 = 0
0 + 1x = 21 + -35
1x = 21 + -35

Combine like terms: 21 + -35 = -14
1x = -14

Divide each side by '1'.
x = -14

Simplifying
x = -14

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