Answer:
2p²-5p+3 is the final answer as they aren't any like terms to collect in order to simply the solution further.
Step-by-step explanation:
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3x + 5y = -2 is x= −5 /3 y+ −2 /3
2x - y = 3 is x= 1 /2 y+ 3 /2
180
3x + 4x + 5x = 156
12x = 156
x = 13
3*13 = 39
5*13 = 65
65-39=26 cm difference
