Question

5a-12 =23 using trial and error method

Answer 1

Step-by-step explanation:

a=1

5×1-12=23

5-12=23

-7 is not equal to 23

a=4

5×4-12=23

20-13=23

7 is not equal to 23

a=8

5×8-12=23

40-12=23

28 is not equal to 23

a=7

5×7-12=23

35-12=23

23=23

Hence proved

Answer 2

7 is the correct answer.

Please mark as brainly please.