Question

7. 4x +7= 15 when x= 2.

Answer 1

15

Explanation:

4(2)+7=15

8+7=15

15=15

Answer 2

The solution is given below:

Explanation:

4x +7= 15

As we know that the value x is 2

therefore the equation will be

4 × 2 + 7 = 15

8 + 7 = 15

15 = 15