<u>-2x + 1 = 9</u>
Add 2x to each side of the equation:
1 = 2x + 9
Subtract 9 from each side:
-8 = 2x
Divide each side by 2 :
<u>-4 = x</u>
Answer:
882.1
Step-by-step explanation:
The Sum means addition if he got this answer he most likely multiplied those two numbers because he thought of multiplication Sum is just purely addition nothing else
Probably 150 which isn't bad
500 divided by 60 = 8.33... (but you round it to 8)
it would take her about 8 minutes.
Answer:
Infinite number of solutions.
Step-by-step explanation:
We have the equations,
1. 3x+3y=10
2. -9x-9y= -30
Now, if we multiply equation 1 with -3, we will obtain equation 2.
i.e. -3×(3x+3y)= -3×10
i.e. -9x-9= -30
So, we see that both the equations are same.
The equation 3x+3y=10 will have solution for many values of x and y.
Hence, the system will have infinite number of solutions.