Question

Solve by cross multiplication method X + Y is equal to 7 and x minus Y is equal to 3

Answer 1

x + y = 7

x = 7 - y .....( 1 )

x - y = 3

x = 3 + y ..... ( 2 )

Combining the equations, we get

7 - y = 3 + y

7 - 3 = 2y

4 / 2 = y

2. = y

Answer 2

Answer:

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Step-by-step explanation:

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