42-(2x-9)+17=84

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Solution for 42-(2x-9)+17=84 equation:


Simplifying
42 + -1(2x + -9) + 17 = 84

Reorder the terms:
42 + -1(-9 + 2x) + 17 = 84
42 + (-9 * -1 + 2x * -1) + 17 = 84
42 + (9 + -2x) + 17 = 84

Reorder the terms:
42 + 9 + 17 + -2x = 84

Combine like terms: 42 + 9 = 51
51 + 17 + -2x = 84

Combine like terms: 51 + 17 = 68
68 + -2x = 84

Solving
68 + -2x = 84

Solving for variable 'x'.

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

Add '-68' to each side of the equation.
68 + -68 + -2x = 84 + -68

Combine like terms: 68 + -68 = 0
0 + -2x = 84 + -68
-2x = 84 + -68

Combine like terms: 84 + -68 = 16
-2x = 16

Divide each side by '-2'.
x = -8

Simplifying
x = -8

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