4 years ago

Solve each system by elimination 7x-4y=-6

Mathematics

1 answer:

nalin [4]4 years ago

4 0

Answer:

(-4, -5.5).

Step-by-step explanation:

7x - 4y = -6

-5x + 4y = -2 Adding these 2 equations:

2x = -8

x = -4

Substituting for x:

7(-4) - 4y = -6

-4y = - 6 + 28 = 22

y = -5.5.

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