Question

Help me I really can’t do this :/

Answer 1

p = 3/10

Explanation:

p + 2/5 = 7/10

we need to isolate p, so to do that we subtract 2/5 from both sides. since 2/5 - 2/5 is 0, you can eliminate 2/5 and isolate p

p + 2/5 = 7/10

- 2/5 - 2/5

p = 7/10 - 2/5

p = 7/10 - 4/10 = 3/10 (changed 2/5 into 4/10 by multiplying both numerator and denominator by 2)