Question: 5. Solve by the substitution method and check. (4 marks) 3y+2x=7 x=6y+6 1 6. Solve by the substitution method and check. (3 marks) 3x +

5. Solve by the substitution method and check. (4 marks) 3y+2x=7 x=6y+6 1 6. Solve by the substitution method and check. (3 marks) 3x + y 4 = 0 1 7 x=y+

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