4 years ago

Solving system using subsitution

1 answer:

8 0

Below is the solution:

<span>8t + 5p = 220
5t + p = 112

From the second equation:
p = 112 - 5t

Replace into first:
8t + 5(112 - 5t) = 220
t = 20

p = 112 - 5t = 112 - 100 = 12
</span>
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