3(2x+1)-4(x+2)=9

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Solution for 3(2x+1)-4(x+2)=9 equation:


Simplifying
3(2x + 1) + -4(x + 2) = 9

Reorder the terms:
3(1 + 2x) + -4(x + 2) = 9
(1 * 3 + 2x * 3) + -4(x + 2) = 9
(3 + 6x) + -4(x + 2) = 9

Reorder the terms:
3 + 6x + -4(2 + x) = 9
3 + 6x + (2 * -4 + x * -4) = 9
3 + 6x + (-8 + -4x) = 9

Reorder the terms:
3 + -8 + 6x + -4x = 9

Combine like terms: 3 + -8 = -5
-5 + 6x + -4x = 9

Combine like terms: 6x + -4x = 2x
-5 + 2x = 9

Solving
-5 + 2x = 9

Solving for variable 'x'.

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

Add '5' to each side of the equation.
-5 + 5 + 2x = 9 + 5

Combine like terms: -5 + 5 = 0
0 + 2x = 9 + 5
2x = 9 + 5

Combine like terms: 9 + 5 = 14
2x = 14

Divide each side by '2'.
x = 7

Simplifying
x = 7

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