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

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


Simplifying
3(x + -9) + 4(x + 3) = 0

Reorder the terms:
3(-9 + x) + 4(x + 3) = 0
(-9 * 3 + x * 3) + 4(x + 3) = 0
(-27 + 3x) + 4(x + 3) = 0

Reorder the terms:
-27 + 3x + 4(3 + x) = 0
-27 + 3x + (3 * 4 + x * 4) = 0
-27 + 3x + (12 + 4x) = 0

Reorder the terms:
-27 + 12 + 3x + 4x = 0

Combine like terms: -27 + 12 = -15
-15 + 3x + 4x = 0

Combine like terms: 3x + 4x = 7x
-15 + 7x = 0

Solving
-15 + 7x = 0

Solving for variable 'x'.

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

Add '15' to each side of the equation.
-15 + 15 + 7x = 0 + 15

Combine like terms: -15 + 15 = 0
0 + 7x = 0 + 15
7x = 0 + 15

Combine like terms: 0 + 15 = 15
7x = 15

Divide each side by '7'.
x = 2.142857143

Simplifying
x = 2.142857143

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