2 years ago

Simultaneous Equations - 5p-2q=9 3p+2q=7

Mathematics

1 answer:

Luda [366]2 years ago

4 0

Apnswer:

p = 1

q = -2

Step-by-step explanation:

5p - 2q = 9 eqn 1

3p + 2q = 7 eqn 2

subtract equation 2 from 1

2p = 2

p = 1

Substitute for p in equation 1

5(1) - 2q = 9

5 - 2q = 9

-2q = 4

q = -2

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