(7x-12)-(2x+1)=

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Solution for (7x-12)-(2x+1)= equation:


Simplifying
(7x + -12) + -1(2x + 1) = 0

Reorder the terms:
(-12 + 7x) + -1(2x + 1) = 0

Remove parenthesis around (-12 + 7x)
-12 + 7x + -1(2x + 1) = 0

Reorder the terms:
-12 + 7x + -1(1 + 2x) = 0
-12 + 7x + (1 * -1 + 2x * -1) = 0
-12 + 7x + (-1 + -2x) = 0

Reorder the terms:
-12 + -1 + 7x + -2x = 0

Combine like terms: -12 + -1 = -13
-13 + 7x + -2x = 0

Combine like terms: 7x + -2x = 5x
-13 + 5x = 0

Solving
-13 + 5x = 0

Solving for variable 'x'.

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

Add '13' to each side of the equation.
-13 + 13 + 5x = 0 + 13

Combine like terms: -13 + 13 = 0
0 + 5x = 0 + 13
5x = 0 + 13

Combine like terms: 0 + 13 = 13
5x = 13

Divide each side by '5'.
x = 2.6

Simplifying
x = 2.6

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