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sashaice [31]
3 years ago
7

Y=9x-2

Mathematics
1 answer:
borishaifa [10]3 years ago
8 0
Y = 9x - 2
3x - 2y = 7
so sub in 9x - 2 for y in the 2nd equation and solve for x

3x - 2(9x - 2) = 7
3x - 18x + 4 = 7
3x - 18x = 7 - 4
-15x = 3
x = -3/15
x = -1/5 or - 0.2 <===
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