Answer:

Step-by-step explanation:
I hope this helps you :)
-8-5b+7+5b
add +5b to -5b to get 0.
-8+7 = -1
Answer is -1.
Answer:
16
Step-by-step explanation:
if 5 white cups and 8 green 10 white cups and 16 green
5 × 2 = 10
8 × 2 = 16
Answer:
7t-14
Step-by-step explanation:
you have to distribute the 7 into the t and 2 and take the -with the 2
Step-by-step explanation:
5x^2+2x=1
5x^2+2x-1=0
x=-b+/-√b^2-4ac÷2a
x=-2+/-√-2^2-(4×5×-1)÷2×5
x=-2+/+√4--20÷10
x=-2+/-√24÷10
x=-2+√24÷10 or -2-√24÷10
x=-2+4.9÷10 or -2-4.9÷10
x=2.9÷10 or -6.9÷10
x=0.29 or -0.69