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ra1l [238]
3 years ago
13

Solve each system using the substitution method 6x-y=-4 and 2x+2y=15

Mathematics
1 answer:
Fynjy0 [20]3 years ago
8 0
Convert 6x - y = -4 into y = mx + b
Y - 4 = 6x
Y = 6x + 4
Substitute that into second equation
2x + 2(6x + 4) = 15
2x + 12x + 8 = 15
14x = 7
X = 1/2
6(1/2) - y = -4
3 - y = -4
-y = -7, y = 7
Final answer: x = 1/2, y = 7
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