Answer:
Step-by-step explanation:
a₁ = -1
a₂ = 3a₁ + 7 = 3(-1)+7 = 4
a₃ = 3a₂ + 7 = 3·4+7 = 19
Answer:I think the answer is multiplication property of equality
it is being multiplied to get the answer so that should be the answer
4,200