Question

find the value of m so that (-3)m+1×(-3)5=(-3)7 simplify (5/8) -7×(8/5) -5​

Answer 1

Answer:

-3m+1×-3(5) = -3(7)

1× -15 + 21 = 3m

-15 + 21 = 3m

6 = 3m

6/3 =m

2 = m

(5/8)-7×(8/5)-5

(5-56)/8 × (8-25)/5 {taking LCM}

-51/8 × -17/5

867/40