Question

Solve by the method of elimination: 5x + 6y =28 and 3x + 4y = 18​

Answer 1

Answer:

3x+4y=25 ...(1)

5x−6y=−9 ...(2)

Multiply (1) by 3 and (2) by 2

9x+12y=75

(+) 10x−12y =−18

19x=57

x=3

Put x = 3 in (2)

5x−6y=−9

5(3)−64=−9

6y=15+9

64=24

y=4

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