Math, asked by Prayash3274, 1 month ago

Solve the simultaneous equation of
x—y=7
x to the power 2 — y to the power 2 =21

Answers

Answered by ahmedshahbaaz28
0

Answer:

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Answered by b22554113
0

Answer:

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Step-by-step explanation:

Example;

Given x + y = 7 …(1)

and 3x - 2y = 11 …(2)

Form equation (1) we get y = 7 - x …(3)

Substituting value of y from equation (3) in (2), we get

3x - 2 (7 - x) = 11

implies 3x - 14 + 2x = 11

implies 5x - 14 = 11

implies 5x = 25 or x = 5

Substituting value of x in equation (3), we get

y = 7 - 5

implies y = 2

∴ Solution is x=5y=2}

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