- Solve for p and q:
31 p + 57 q = 150
57 p + 31 q = 202
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Answer:
p=3 and q=1
Step-by-step explanation:
31p +57q = 150 -(1)
57p + 31q = 202 -(2)
adding eq (1) +((2)
31p+57q+57p +31q = 150+202
88(p+q) = 352
(p+q) =352/88
(p+q)=4 -(3)
subtracting eq (2) from eq (1)
57p -31q -31p +57q = 202-150
26(p-q) =52
(p-q) =52/26
(p-q) =2 -(4)
from eq (3) and (4)
2p=6
p=3 -(5)
put in eq (3)
3+q=4
q =4-3
q =1
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