Question

what is
3x-7=23
??
??

Answer 1

x=10
3 x 10 = 30
30 - 7 = 23

Answer 2

x=10
what you do i because the 7 is being subtracted you add it to the 7 and to 23 to cancel it out so it becomes 3x=30 then you divide both by 3 and end up with x=10