Answer:
10x²+11-2x
Step-by-step explanation:
I hope you mean 7x²+8+5, not 7x²+8x+5.
We need to combine like terms. Anything with squared should be added together, et cetera.
(7x²+8+5)+(3x²-2x-2)
You can take out the parenthesis, because they don't matter in addition.
7x²+8+5+3x²-2x-2
Add the terms, step by step. Each bold pair needs to be added together.
7x²+8+5+3x²-2x-2
10x²+8+5-2x-2
10x²+11-2x
Now there's no more we can add together.
If there were 6 pieces and Keith ate 2 of the pieces, then there would be 4 pieces left.

and when you reduce it it would be
Answer:
12 yards=36 feet
Step-by-step explanation:
1 yard=3 feet
2 yards=6 feet
3 yards=9 feet
4 yards=12 feet
5 yards=15 feet
6 yards=18 feet
7 yards=21 feet
8 yards=24 feet
9 yards=27 feet
10 yards=30 feet
11 yards=33 feet
12 yards= 36 feet
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Answer:
r=−1/5
Step-by-step explanation:
Step 1: Simplify both sides of the equation.
5(r−10)=−51
(5)(r)+(5)(−10)=−51(Distribute)
5r+−50=−51
5r−50=−51
Step 2: Add 50 to both sides.
5r−50+50=−51+50
5r=−1Step 3: Divide both sides by 5.
5r/5=−1/5
r=−1/5