Question

Solve this pair of linear equations 10p+15q=65 and 10p-8q=-4 by using elimination method.
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Whole solution
Step by step

Answer 1

Answer:

q=3

p=2

Step-by-step explanation:

10p+15q=65

10p-8q= -4

to eliminate p;

subtract equation (2) from (1)

23q=69

q=3

substitute q=3 in equation(2)

10p-8(3)= -4

10p-24= -4

10p=20

p=2