Question

Solve the following by simultaneous equation x+y=11,2x-3y=7

Answer 1

Answer:

x=8

y=3

Step-by-step explanation:

x+y=11__________eq.1

2x-3y=7________eq.2

multiplying eq.1 with 2 we get:-

2x+2y=22_______eq.3

subtracting eq.2 from eq.3 we get:-

2x+2y-2x-(-3y)=22-7

2y+3y=15

5y=15

y=15/5

y=3

putting value of y in eq.1 we get:-

x+y=11

x+3=11

x=11-3

x=8

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