Question

Solve 10x + 3y=75 and 6x + 5y=11
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Answer 1

Answer:

Step-by-step explanation:

10X+3Y=75.........(1)

6X+5Y = 11...........(2)

(1) * 6

60X+18Y= 450..............(3)

(2) * 10

60X+50Y = 110...............(4)

(3)-(4)

(60X-60X) (18Y-50Y) = (450-110)

- 32 Y = 340

Y = - 10.6

SUBSTITUTING IN (2)

6X-53 = 11

6X= 64

X =  10.6

THERFORE ,

X= 10.6

Y = 10.6.

HOPE THIS HELPS.

Answer 2

Answer:

Step-by-step explanation:

10x+3y=75--(i)*5

6x+5y=11--(ii)*3

BY ELEMINATION METHOD:

50x+15y=375

18x+15y =  33

(-)     (-)   = (-)

32x        =342