Question

Prove that the following statements are false and give reason:
a) (18-6) + 3 = -18 - ( 6+4)
b)(437-32) +48= 437 - (32+48)

Answer 1

$$\begin{gathered} \mathrm{Dear}\mathrm{Student}, \\ \left(18-6\right)+3=12+3=15 \\ -18-\left(6+4\right)=-18-10=-28 \\ \mathrm{So}\mathrm{it}\mathrm{is}\mathrm{false} \\ \mathrm{Now} \\ \left(437-32\right)+48=437-\left(32+48\right) \\ 405+48=437-80 \\ 453=357 \\ \mathrm{But}\mathrm{it}\mathrm{is}\mathrm{not}\mathrm{true}\mathrm{so}\mathrm{false}\mathrm{again} \\ \mathrm{Regards} \end{gathered}$$