Answer:
-11b + 7 = 40
Subtract 7 on both sides
-11b = 33
Divide by -11
b = -3
but if b=0 b is already solved unless you meant b=x
yes
Step-by-step explanation:
5z
3z+5z-3z(3z gets cancelled)
1/2x or x/2
You're taking the number you started with and either multiplying it by 1/2 half or dividing it by 2.