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4. Solve the following simultaneous equations: a. 2x-5y=7 2=3x-2.5y b. 4P-3Q=4 2Q+1.5P=20

4. Solve the following simultaneous equations:

a. 2x-5y=7 2=3x-2.5y

b. 4P-3Q=4 2Q+1.5P=20

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