17x-(4x-8)=21

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Solution for 17x-(4x-8)=21 equation:


Simplifying
17x + -1(4x + -8) = 21

Reorder the terms:
17x + -1(-8 + 4x) = 21
17x + (-8 * -1 + 4x * -1) = 21
17x + (8 + -4x) = 21

Reorder the terms:
8 + 17x + -4x = 21

Combine like terms: 17x + -4x = 13x
8 + 13x = 21

Solving
8 + 13x = 21

Solving for variable 'x'.

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

Add '-8' to each side of the equation.
8 + -8 + 13x = 21 + -8

Combine like terms: 8 + -8 = 0
0 + 13x = 21 + -8
13x = 21 + -8

Combine like terms: 21 + -8 = 13
13x = 13

Divide each side by '13'.
x = 1

Simplifying
x = 1

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