Answer:
Step-by-step explanation:
3x-2y= 100
3x= 10 +2y
x =(10+2y)/
an equivalent expression is 5y+4
there is 3y which is y+y+y
so you have y+y+y+y+4+y
there are 5 y so it is 5y
then you have +4
5y+4
The answer is b because you can divide them by 2 to get the answer<span />
Question: What is the solution to the equation 
Answer: 
Explanation: 
[ Step One] Subtract 9x From Both Sides Of Equation

[ Step Two ] Simplify Equation

[ Step Three ] Divide Both Sides By -7

[ Step Four ] Simplify


Answer:
-2
Step-by-step explanation:
Replace x with -1
(-1)2 - (-1) - 1
-2 + 1 - 1
-2