7(x-3)-(x-1)=2x+1

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Solution for 7(x-3)-(x-1)=2x+1 equation:


Simplifying
7(x + -3) + -1(x + -1) = 2x + 1

Reorder the terms:
7(-3 + x) + -1(x + -1) = 2x + 1
(-3 * 7 + x * 7) + -1(x + -1) = 2x + 1
(-21 + 7x) + -1(x + -1) = 2x + 1

Reorder the terms:
-21 + 7x + -1(-1 + x) = 2x + 1
-21 + 7x + (-1 * -1 + x * -1) = 2x + 1
-21 + 7x + (1 + -1x) = 2x + 1

Reorder the terms:
-21 + 1 + 7x + -1x = 2x + 1

Combine like terms: -21 + 1 = -20
-20 + 7x + -1x = 2x + 1

Combine like terms: 7x + -1x = 6x
-20 + 6x = 2x + 1

Reorder the terms:
-20 + 6x = 1 + 2x

Solving
-20 + 6x = 1 + 2x

Solving for variable 'x'.

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

Add '-2x' to each side of the equation.
-20 + 6x + -2x = 1 + 2x + -2x

Combine like terms: 6x + -2x = 4x
-20 + 4x = 1 + 2x + -2x

Combine like terms: 2x + -2x = 0
-20 + 4x = 1 + 0
-20 + 4x = 1

Add '20' to each side of the equation.
-20 + 20 + 4x = 1 + 20

Combine like terms: -20 + 20 = 0
0 + 4x = 1 + 20
4x = 1 + 20

Combine like terms: 1 + 20 = 21
4x = 21

Divide each side by '4'.
x = 5.25

Simplifying
x = 5.25

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