3 years ago

Directions: Simplify the following monomials (if possible).

Mathematics

1 answer:

MakcuM [25]3 years ago

5 0

13. 17y² - 22y

14. 9m²n+7mn²

15. 11y²

16. 8x²y

I'm not 100% sure if these are all correct, so please forgive me if I'm wrong.

Hopefully this helps, and please consider marking branliest.

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4 years ago

Read 2 more answers

Solve by using elimination.express answer as an ordered pair 2x-5y=-7 5x-3y=11

jonny [76]

$2x-5y=-7 \ \ \ \ \ \ |\times (-5) \\
5x-3y=11 \ \ \ \ \ \ \ |\times 2 \\ \\
-10x+25y=35 \\
\underline{10x-6y=22 \ \ \ \ \ \ } \\
25y-6y=35+22 \\
19y=57 \\
y=\frac{57}{19} \\
y=3 \\ \\
2x-5y=-7 \\
2x-5 \times 3 =-7 \\
2x-15=-7 \\
2x=-7+15 \\
2x=8 \\
x=\frac{8}{2} \\
x=4 \\ \\ \boxed{(x,y)=(4,3)}$