Given: 8x - 3y = -21, 3x + y = -10; Prove: x = -3 algebraic proofs 2 column proofs​

$450

step-by-step explanation:

first, you have to multiply 150x2=300

next, you have to add 150+300= 450

part 1 answer = 8

part 2 answer = 72

step-by-step explanation:

part 1 explanation = add all of the numbers, then divide by how many numbers you have. so, 200/25 = 8.

part 2 explanation = not gonna lie, this is hard to explain, so just google how to do it.

4444444444444 i think