19x-21-x=51

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Solution for 19x-21-x=51 equation:


Simplifying
19x + -21 + -1x = 51

Reorder the terms:
-21 + 19x + -1x = 51

Combine like terms: 19x + -1x = 18x
-21 + 18x = 51

Solving
-21 + 18x = 51

Solving for variable 'x'.

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

Add '21' to each side of the equation.
-21 + 21 + 18x = 51 + 21

Combine like terms: -21 + 21 = 0
0 + 18x = 51 + 21
18x = 51 + 21

Combine like terms: 51 + 21 = 72
18x = 72

Divide each side by '18'.
x = 4

Simplifying
x = 4

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