Resolver -(7)/(20)-((-1)/(10)) | Equatix - Math Solver

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Example

3(r+2s)=2t-4

a⋅(b-2)=3b

3(r+2s)=2t-4

a⋅(b-2)=3b

Question

$$- \frac{ 7 }{ 20 } -( \frac{ -1 }{ 10 } )$$