PLSSSSS • Demand equation: 0.7x + y = 340 Supply equation: -1.5x + y = 320 1. Solve the system algebraically to dete

Question

PLSSSSS

• Demand equation: 0.7x + y = 340
Supply equation: -1.5x + y = 320
1. Solve the system algebraically to determine the balance point between
supply and demand.

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Thanh Thu 6 days 2021-07-21T22:31:38+00:00 1 Answers 0 views 0

Answers ( )

    0
    2021-07-21T22:32:59+00:00

    Answer:

    Step-by-step explanation:

    Subtract equation 2 from equation 1

    .7x+y-(-1.5x+y)=340-320

    .7x+y+1.5x-y=20

    2.2x=20

    x=100/11, then use this in either original equation to find y.

    .7(100/11)+y=340

    y=3670/11, so the balance point is

    (100/11, 3670/11)

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Giải phương trình 1 ẩn: x + 2 - 2(x + 1) = -x . Hỏi x = ? ( )