Question

solve for x
3x + 10x =15

Answer 1

x=15/13

Answer 2

add up the x's first

Answer 3

then get the x by itself. 13x=15
so divide the 13 to both sides
it will cancel out on 13x side so the x will be by itself
then 15 will turn to 15/13
so....x=15/13