3x =12 A. 4 B. 36

3 answers

To solve the equation 3x = 12, we need to isolate x.

Dividing both sides of the equation by 3, we have:

3x/3 = 12/3

x = 4

So, the solution to the equation is x = 4.

Therefore, the correct answer is A) 4.
2/3x=8
A. 4
B. 12
To solve the equation (2/3)x = 8, we need to isolate x.

To isolate x, we can multiply both sides of the equation by the reciprocal of (2/3), which is (3/2):

(3/2)(2/3)x = (3/2)(8)

Simplifying, we get:

1x = 12

So, the solution to the equation (2/3)x = 8 is x = 12.

Therefore, the correct answer is B) 12.