8x-x+3=21-4

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Solution for 8x-x+3=21-4 equation:


Simplifying
8x + -1x + 3 = 21 + -4

Reorder the terms:
3 + 8x + -1x = 21 + -4

Combine like terms: 8x + -1x = 7x
3 + 7x = 21 + -4

Combine like terms: 21 + -4 = 17
3 + 7x = 17

Solving
3 + 7x = 17

Solving for variable 'x'.

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

Add '-3' to each side of the equation.
3 + -3 + 7x = 17 + -3

Combine like terms: 3 + -3 = 0
0 + 7x = 17 + -3
7x = 17 + -3

Combine like terms: 17 + -3 = 14
7x = 14

Divide each side by '7'.
x = 2

Simplifying
x = 2

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