Question

21a + 35 = 15 + a

Then a = …………………



a) -2
b) -3
c) 1
d) -1

Answer 1

Answer:

a= -1

Step-by-step explanation:

21a +35 = 15 + a

-> 21a - a = 15 - 35

-> 20a = -20

-> a = -1

choise D (hope this help)