exam Maths Puzzle Numerical Ability

Marginal cost: $90; 150 items cost $16,000 to produce.

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exam Other Question

p2 + 3p + 2 = 3/2 + 3p - 3
___________
p + 1

If I get the answer I know when my boyfriend will propose! I need help with the steps in solving this problem. It says solve by substitution 3x-5y=41, x-y=11

Thank you,
Brina