Question

The equation below has one solution.

9 x minus 10 = 3 x + 2

What is the solution to the equation?
a –2
b –1
c 1
d 2

Answer 1

d) x = 2

Explanation:

9x - 10 = 3x + 2

6x - 10 = 2 [Subtract 3x from both sides]

6x = 2 + 10 [Subtract 10 from both sides]

6x = 12 [Combine 2+10]

x = 2 [Divide both sides by 2]