Question

giải giúp tớ vs:

5225:[215- (3x-18)] = 25

Answer 1

5225:[215-(3x-18)]=25

215-(3x-18)=5225:25

215-(3x-18)=209

3x-18=215-209

3x-18=6

3x=6+18

3x=24

x=24:3

x=8

Vậy x=8

Answer 2

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Answer 3

\(5225\div\left[215-\left(3x-18\right)\right]=25\)

\(215-\left(3x-18\right)=5225\div25\)

\(215-\left(3x-18\right)=209\)

\(3x-18=215-209\)

\(3x-18=6\)

\(3x=6+18\)

\(3x=24\)

\(x=24\div3\)

\(x=8\)

Vậy x = 8