Question

[13+(-12)]+(.............)=13+[(-12)+(-7)]

Answer 1

the answer is -7. due to this both the sides will have a result of -6. so they will be equal

Answer 2

Given :

• [13 + (– 12)] + (…………) = 13 + [(–12) + (–7)]

To find :

• We have to find the missing integer

Solution :

To find the missing integer we have to solve the following integer step-by-step and it also have given brackets so first we have to solve"( )" this bracket and then"[ ]" bracket and in the end of solving we have to take LHS to RHS so that we can get the missing integer So, let's solve!

$: \implies \sf Let \: the \: missing \: integer \: be \: x \\ \\ \\ : \implies \sf [13 + (- 12)] + \sf \purple{(x)} = 13 + [(-12) + (-7)] \\ \\ \\ : \implies \sf [13 - 12] + \sf \purple{(x)} = 13 + [-12 -7] \: \\ \\ \\ : \implies \sf [1] + \sf \purple{(x)} \: = 13 + [ - 19] \\ \\ \\ : \implies \sf 1 \: + \sf \purple{(x)} \: = 13 - 19 \\ \\ \\ : \implies 1 + \sf \purple{(x)} \: = - 6 \\ \\ \\ \therefore \sf{\underline{Now \: we \: will \: send \: 1 \: from \: LHS \: to \: RHS \: it \: will \: become \: - 1}} \\ \\ \\ : \implies \sf x = - 6 - 1 \\ \\ \\ : \implies {\underline{\boxed{\pink{\mathfrak{x \leadsto - 7}}}}} \\ \\ \\ : \implies {\bf{\green{[13 + (- 12)] + { \orange{ \boxed{\green{( - 7)}}}}= 13 + [(-12) + (-7)]}}}$

•°• Hence, verified! that the x $\mapsto$ -7

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