Question

-10x+9x=12 solve for x equation

Answer 1

-10x+9x= -1x

-1x=12 -1 divided by 12 equals -12 Therefore x = -12

Answer 2

x = -12

Explanation:

Remember that ax + bx = (a+b)x

-10x + 9x = 12

Add -10x and 9x together

(-10 + 9)x = 12

-x = 12 (-1x is written as -x, just as 1x is written as x)

÷ -1 both sides

x = -12

I hope this helps. Happy studying. :)