Menyelesaikan -2.78-(7.2+3.22) | 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

$$-2.78-(7.2+3.22)$$