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

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Solution for 4(x+3)-(2x+1)=7(x+3) equation:


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

Reorder the terms:
4(3 + x) + -1(2x + 1) = 7(x + 3)
(3 * 4 + x * 4) + -1(2x + 1) = 7(x + 3)
(12 + 4x) + -1(2x + 1) = 7(x + 3)

Reorder the terms:
12 + 4x + -1(1 + 2x) = 7(x + 3)
12 + 4x + (1 * -1 + 2x * -1) = 7(x + 3)
12 + 4x + (-1 + -2x) = 7(x + 3)

Reorder the terms:
12 + -1 + 4x + -2x = 7(x + 3)

Combine like terms: 12 + -1 = 11
11 + 4x + -2x = 7(x + 3)

Combine like terms: 4x + -2x = 2x
11 + 2x = 7(x + 3)

Reorder the terms:
11 + 2x = 7(3 + x)
11 + 2x = (3 * 7 + x * 7)
11 + 2x = (21 + 7x)

Solving
11 + 2x = 21 + 7x

Solving for variable 'x'.

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

Add '-7x' to each side of the equation.
11 + 2x + -7x = 21 + 7x + -7x

Combine like terms: 2x + -7x = -5x
11 + -5x = 21 + 7x + -7x

Combine like terms: 7x + -7x = 0
11 + -5x = 21 + 0
11 + -5x = 21

Add '-11' to each side of the equation.
11 + -11 + -5x = 21 + -11

Combine like terms: 11 + -11 = 0
0 + -5x = 21 + -11
-5x = 21 + -11

Combine like terms: 21 + -11 = 10
-5x = 10

Divide each side by '-5'.
x = -2

Simplifying
x = -2

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