7(x-3)+5x=4x-9

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Solution for 7(x-3)+5x=4x-9 equation:


Simplifying
7(x + -3) + 5x = 4x + -9

Reorder the terms:
7(-3 + x) + 5x = 4x + -9
(-3 * 7 + x * 7) + 5x = 4x + -9
(-21 + 7x) + 5x = 4x + -9

Combine like terms: 7x + 5x = 12x
-21 + 12x = 4x + -9

Reorder the terms:
-21 + 12x = -9 + 4x

Solving
-21 + 12x = -9 + 4x

Solving for variable 'x'.

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

Add '-4x' to each side of the equation.
-21 + 12x + -4x = -9 + 4x + -4x

Combine like terms: 12x + -4x = 8x
-21 + 8x = -9 + 4x + -4x

Combine like terms: 4x + -4x = 0
-21 + 8x = -9 + 0
-21 + 8x = -9

Add '21' to each side of the equation.
-21 + 21 + 8x = -9 + 21

Combine like terms: -21 + 21 = 0
0 + 8x = -9 + 21
8x = -9 + 21

Combine like terms: -9 + 21 = 12
8x = 12

Divide each side by '8'.
x = 1.5

Simplifying
x = 1.5

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