Answer: 28
Step-by-step explanation:
420 divided by 15 is 28.
2(4x + 2) = 4x - 12(x - 1) |use distributive property: a(b +/- c) = ab +/- ac
8x + 4 = 4x - 12x + 12
8x + 4 = -8x + 12 |subtract 4 from both sides
8x = -8x + 8 |add 8x to both sides
16x = 8 |divide both sides by 16
x = 0.5
Answer:
-7a^3+63a^2-7a
Step-by-step explanation: