Question

the teacher said"I have thought of a number. if you add 7 to 3 times the number,you get 31. what is the number?" (ans should come 8 )

pls send ans step by step asap​

Answer 1

Answer:

x =8

Step-by-step explanation:

x+x+x+7=31

3x+7 = 31

3x = 31-7 (transposal of 7 to lhs)

3x = 24

x = 24 ÷ 3 (transposal of 3 to Lhs)

x = 8