Question

solve the pair of linear equation by cross multiplication method : 3x-y-40=0 and 4x-2y-50=0​

Answer 1

Answer:

yup ,........

Step-by-step explanation:

yup by yup and suphhjhh

Answer 2

Answer:

3x – 1y = 40

4x – 2y = 50

3x – 1y – 40 = 0 ---------(1)

4x – 2y – 50 = 0 ---------(2)

(this step in attachment)

(after attachment)

x/(50 – 80) = y/(-160 + 150) = 1/(-6 + 4)

x/(-30) = y/10 = 1/(-2)

x = -30/(-2) y = 10/(-2)

x = 15 y = 5

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