Answer:
Step-by-step explanation:
Answer:
8a+5b-9
Step-by-step explanation:
(8a+2b-4)+(3b-5)
8a+2b+3b-4-5
8a+5b-9
Answer:
-3
Step-by-step explanation:
Step 1: Write expression
(-4) + 1
Step 2: Add
-3
Answer:
The answer is D
(x=3, y=8)
Step-by-step explanation:
We want to reduce as many variable as we can so, we can obtain the value for the remaining variables.
Therefore, the first equation y=x+5 multiply it -2., you have -2y=-2x-10 and sum it to the second (2y-x=13), you will obtain the following: -x=13-2x-10.
You have x=3.
If you substitute x=3 in the first equation, you have y=8