1.

Check: is 12 +(8+7) = (12+8) +7​

Answer»

Bro first we have to find the answer of first one as12+(8+7) = 12+15= 27.then we have to solve NEXT one as(12+8)+7 = 20+7= 27.then we have to SHOW LIKE LHS=RHS = 27=27



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