Question

Determine whether the value makes the open sentence true or false. 6a+3=15

Answer 1

a = 1

so

6 + 3 = 15

9 = 15?!!

No, 9 does not = 15

Answer 2

Q.1 6a + 3 = 15, and a = 1

Plug in 1 for a

6(1) + 3 = 15

Multiply 1 with 6

6 x 1 = 6

6 + 3 = 15

Add.

6 + 3 = 9

9 ≠ 15

C. No, 9 ≠ 15 is your best answer

hope this helps