Question

56+{(-90)+7}={56+(-90)}+7_____​

Answer 1

Answer:

Step-by-step explanation:

56+{(-90)+7}={56+(-90)}+7

⇒56+(-90+7) = (56- 90) +7

⇒56+ (-83) = (-34) +7

⇒56 - 83 = -34 + 7

⇒-33 = -27

⇒ -11 = -9

I hope answer is up to the mark.

Please mark me as brainliest..tq.

Answer 2

Answer:

Step-by-step explanation:

Given:           LHS =  56 + {(-90) + 7}

                     RHS = {56+ (-90)} + 7

Taking LHS,

             = 56 + {(-90) + 7}

             = 56 + {-90 + 7}

             = 56 - 83

             = -27

Taking RHS,

             = {56+ (-90)} + 7

             = {56 - 90} + 7

             = -34 + 7

             = -27

∴   So LHS = RHS i.e,    56 + {(-90) + 7} = {56+ (-90)} + 7

                                                 hence proved.

mark this as brainliast.