Question

Jika 0,8 x 110 - 4/5 x 80 + 80% × n = 120, maka nilai n adalah...

Answer 1

Verified answer

waduh.. kok sulit ya ternyata ngetiknya

Answer 2

0,8×110-4/5×80+80%×n=120
4/5×110-4/5×4/5+4/5×n=120
88-16/20+4/5n=120
-16/20+4/5n=120-88
-4/5+4/5n=32
4/5n=32/-4/5
4/5n=32×5/-4
4/5n=-40
n=-40×5/4
n=-200/4
n=-50