3x(3)=7x-15

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Solution for 3x(3)=7x-15 equation:


Simplifying
3x(3) = 7x + -15

Reorder the terms for easier multiplication:
3 * 3x = 7x + -15

Multiply 3 * 3
9x = 7x + -15

Reorder the terms:
9x = -15 + 7x

Solving
9x = -15 + 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.
9x + -7x = -15 + 7x + -7x

Combine like terms: 9x + -7x = 2x
2x = -15 + 7x + -7x

Combine like terms: 7x + -7x = 0
2x = -15 + 0
2x = -15

Divide each side by '2'.
x = -7.5

Simplifying
x = -7.5

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