4 years ago

3x minus 9 equals 1x plus 12

Mathematics

1 answer:

Sergio [31]4 years ago

3 0

Answer:

x = 21/2

Step-by-step explanation:

Move all terms not containing x to the right side of the equation.

3x=x+21

Move all terms containing x to the left side of the equation.

2x=21

Divide each term by

and simplify.

x = 21/2

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