Question

10 less than 7 times a number is the same as 3 times the number plus 18

Answer 1

yes, it is the same

Explanation:

7x - 10 = 3x + 18

7x-10+10 = 3x + 18 + 10

7x = 3x + 28

7x - 3x = 3x - 3x + 28

4x = 28

4x ÷ 4 = 28 ÷ 4

x=7

Plug x back in and check the answer.

7x-10 = 3x+18

7(7)-10 = 3(7)+18

49-10 = 21+18

39 = 39

So, YES they are the same.