3x-15=3*4-9

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Solution for 3x-15=3*4-9 equation:


Simplifying
3x + -15 = 3 * 4 + -9

Reorder the terms:
-15 + 3x = 3 * 4 + -9

Multiply 3 * 4
-15 + 3x = 12 + -9

Combine like terms: 12 + -9 = 3
-15 + 3x = 3

Solving
-15 + 3x = 3

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 + 3x = 3 + 15

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

Combine like terms: 3 + 15 = 18
3x = 18

Divide each side by '3'.
x = 6

Simplifying
x = 6

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