spiderman66
05.05.2020 •
Mathematics
20 POINTS
For each ordered pair, Determine whether it is a solution of the system of equations.
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Ответ:
No
No
Yes
Yes
Step-by-step explanation:
8x + 2(-4x - 5) = -10
8x - 8x - 10 = -10
-10 = -10
Infinite solutions
-3 = -4(-2) - 5
-3 = 3 (false)
1 = -4(6) - 5
1 = -29 (false)
-5 = -4(0) - 5
-5 = -5 (true)
15 = -4(-5) - 5
15 = 15 (true)
Ответ:
B
Step-by-step explanation:
2x+x=180
3x=180
x=60
2x=120
so B
hope that helps if it does please mark mine as brainliest.