Question

Express the following statements as a linear equation in two variables.
(i) The sum of two numbers is 34.
(i) The cost of a ball pen is 5 less than half the cost of a fountain pen.​

Answer 1

Answer:

I) Let the numbers be x and y

x + y = 34

II) cost of ball pen be x and of fountain pen be y

x = (1/2)y - 5

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Answer 2

i. Let numbers be X and Y

ATQ,

X+Y=34

ii. Let cost of ball pen be X and fountain pen be Y

ATQ,

X=5-Y/2

X=(10-Y)/2

2X=19-Y

2X+Y=19

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