5p + 15p + 7p = 27p
5p - 15p + 7p = -3p
5p x 15p + 7p = 75p2 + 7p
5p/15p + 7p = 7p + 1/3
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8p-p-4p= 7p-4p= 3p
To solve this group together the like terms. 7p + -p = 6p Then the answer is 6p -9.
2p+4q=16 (now divide the equation by two) p+2q=8 (now subtract 2q) p=8-2q 7p+12q=52 (substitue the answer you got for p in the previous equation) 7(8-2q)+12q=52 (multiply the first equation by 7) 56-14q+12q=52 (subtract 14q from 12q) 56-2q=52 (subtract the 56 from 52) -2q=-4 (multiply by -1) 2q=4 (divide by 2) q=2 p=8-2q (substitute the value of q) p=8-2(2) (multiply) p=8-4 (subtract) p=4 2p+4q=16 (check your answers with the new values of p and q) 2(4)+4(2)=16 8+8=16 true 7p+12q=52 7(4)+12(2)=52 28+24=52 true