Question

Solve the following systems of simultaneous linear equations by the substitution method:
2x/a + y/b=2 x/a - y/b=4​

Answer 1

Step-by-step explanation:

a

2x

+

b

y

=2,

a

x

−

b

y

=4

2bx+ay=2ab, bx−ay=4ab

Add the two equations,

3bx=6ab

x=2a

Now, 2b(2a)+ay=2ab

ay=−2ab

y=−2b

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