Question

32x +36y =7 , 40x + 48y= 9​

Answer 1

Answer:

32x+36y=7 (1)

40x+48y=9(2)

method by sub stitution

from equation(1)

32x+36y=7

36y=7-32x

y=7-32x/36 (3)

put the value of y in equation (2)

40x+48y=9

40x+48(7-32x/36)=9

40x+2(7-32x)=9

40x+14-64x=9

-24x+14=9

-24x=9-14

-24x=-5

x=-5/-24

x=5/24

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step-by-step explanation: