BreBreDoeCCx
12.10.2020 •
Mathematics
Help.......will be marked brainiest_ ONLY IF CORRECT PLS NOTE
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Ответ:
x = -4, y = 8
Step-by-step explanation:
y = 2x + 16 (1)
2x - 7y = - 64 (2)
Substitute (1) in (2)
2x - 7(2x + 16) = - 64
2x - 14x - 112 = - 64
-12x = -64 + 112
-12x = 48
x = -4
Substitute x = -4 in (1)
y = 2(-4) + 16
y = -8 + 16
y =8