Question

solve the equation 3x+7y=40 and 3x+11y=60​

Answer 1

Step-by-step explanation:

Y = 5

X = 5/3

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Answer 2

Step-by-step explanation:

3x+7y=40. eq.1

3x+11y=60. eq.2

Subtracting eq.1 from eq.2

we get;

(3x+11y=60)-(3x+7y=40)

4y=20

y=5

Putting the value of y in eq.1

3x+7*5=40

3x+35=40

3x=40-35

3x=5

x=5/3