3 years ago

1/4x+1/5x=81 what does x=

Mathematics

2 answers:

Ierofanga [76]3 years ago

8 0

Step-by-step explanation:

here,

1/4x+1/5x=81

or, 1+1/4x+5x=81

or, 2/9x=81

or,2/x=81/9

or,2/x=9

or, x=9*2

so,x=18

Stells [14]3 years ago

3 0

Answer:

x = 180

Step-by-step explanation:

plug it in a calculator like 1/4x + 1/5x = 81 then go down till y o uget 81 81

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