Answer :
p + 6p + 17 = 87
7p+17=87
move +17 to the other side
sign changes from +17 to -17
7p+17-17=87-17
7p=87-17
7p=70
divide both sides by 7 to get p by itself
7p/7=70/7
cross out 7 and 7, divide by 7 and then becomes 1*1*p=p
p=70/7
answer:
p=10
p + 6p + 17 = 87
7p+17=87
move +17 to the other side
sign changes from +17 to -17
7p+17-17=87-17
7p=87-17
7p=70
divide both sides by 7 to get p by itself
7p/7=70/7
cross out 7 and 7, divide by 7 and then becomes 1*1*p=p
p=70/7
answer:
p=10