Answer:
x = 5
Step-by-step explanation:
5(x + 10) + 2x = 13 + 3(5x - 1)
5x + 50 + 2x = 13 + 15x - 3
7x + 50 = 10 + 15x
50 - 10 = 15x - 7x
40 = 8x
40/8 = x
5 = x
-5b2+10b+10b=120
-5b2+20b=120
-5b(b-4)=120
b-4=-24b
-b-24b=-4
-b(1-24)=-4
b=0.173913043478261
Answer:
maybe number 2
Step-by-step explanation:
because if 2+k=18 then there is no other k there and where did the additional 2 come from ?and 2k=18 then value of k is 9 + there is balance.I may be wrong correct me but i think it is no.2