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Different Ways to Solve Simultaneous Linear Equations

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Solve the simultaneous linear equations by using the following methods

a) substitution method
b) Algebraic Elimination Method
c) Cramer's Rule method

2x-3y= 5
3x+7y= -2

Please show all work.

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The expert examines the different ways to solve simultaneous linear equations.

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Hi there,

Thanks for letting me work on your post. Here is my explanation:

a) substitution method

2x-3y=5 (I)
3x+7y=-2 (II)

From (I): we could have x = (5 + 3y)/2, plug it into equation (II):
3/2*(5 + 3y) + 7y = ...

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