Hello from MrBillDoesMath!
Answer: b
Discussion:
7b + 3 - 4b = 3 - 3(b+4) =>
7b + 3 - 4b = 3 - 3b -12 =>
(7b - 4b) + 3 = -3b - 9 =>
3b + 3 = -3b -9 => Add 9 to both sides
3b + 12 = -3b -9 + 9 =>
3b + 12 = -3b => ( add 3b to both sides)
6b + 12 = 0 => (subtract 12 from both sides)
6b = -12 =>
b = -12/6 = -2
Thank you,
MrB
Answer:
-4^8
Step-by-step explanation:
Answer:
x= 8
Step-by-step explanation:
103 - 4x = 71
You have to isolate -4x by using the subtraction property of equality on 103
103(-103) -4x = 71(-103)
-4x = -32
Use Multiplication Property of Equality for the negative
4x = 32
Divide 4 from both sides
x= 8
30 ft should be the answer