Question

can someone explain this to me

http://prntscr.com/2ncxx3

Answer 1

5(x + 3) + 9 = 59 --- given
5x + 15 + 9 = 59 -- distributive property because we distributed the 5 through the parenthesis.
5x + 24 = 59 --- ?? we combined like terms...not sure what property that is
5x + 0 = 35 --- subtraction property...we subtracted 24 from both sides
5x = 35 -- additive identity ...states anything added to 0 keeps its identity
x = 7 -- division property of equality because we divided both sides by 5

Answer 2

Thanks so much <3