Question

Select all the equations for which x = 9 is a solution?

7 + x = 16

3x = 57

x/2 = 4.5

x – 3 = 12

2x + 4 = 22

Answer 1

Answer: 1, 3, 5
Explanation: 7+9=16, so the first one is correct. 3x9 is 27 not 57. /= division sign, so 9/2= 4.5. 9 plus 3 equals 12 it’s not the other way around. 2x9=18+4=22

Answer 2

7+9=16

9/2= 4.5

2(9) + 4 =22

These are the only equations that x=9 would be correct!