हल करना 15 + 18 + 22 + 2a + 31 + 40 | 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

$$15+18+22+2a+31+40$$