9*3-3x=-10x+21

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Solution for 9*3-3x=-10x+21 equation:


Simplifying
9 * 3 + -3x = -10x + 21

Multiply 9 * 3
27 + -3x = -10x + 21

Reorder the terms:
27 + -3x = 21 + -10x

Solving
27 + -3x = 21 + -10x

Solving for variable 'x'.

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

Add '10x' to each side of the equation.
27 + -3x + 10x = 21 + -10x + 10x

Combine like terms: -3x + 10x = 7x
27 + 7x = 21 + -10x + 10x

Combine like terms: -10x + 10x = 0
27 + 7x = 21 + 0
27 + 7x = 21

Add '-27' to each side of the equation.
27 + -27 + 7x = 21 + -27

Combine like terms: 27 + -27 = 0
0 + 7x = 21 + -27
7x = 21 + -27

Combine like terms: 21 + -27 = -6
7x = -6

Divide each side by '7'.
x = -0.8571428571

Simplifying
x = -0.8571428571

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