Resolver -(-7.8+9.2-7)+(-4+3.5-17) | 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

$$-(-7.8+9.2-7)+(-4+3.5-17)$$