Question

a)        10 - (x – 3): 2 = 7² – 1¹⁰  

Answer 1

\(\Rightarrow10-\left(x-3\right):2=49-1=48\\ \Rightarrow\left(x-3\right):2=-38\\ \Rightarrow x-3=-76\\ \Rightarrow x=-73\)

Answer 2

\(10-\left(x-3\right):2=7^2-1^{10}\)

\(\Rightarrow10-\left(x-3\right):2=48\)

\(\Rightarrow\left(x-3\right):2=-38\)

\(\Rightarrow x-3=-76\Rightarrow x=-73\)

Answer 3

\(10-\left(x-3\right):2=7^2-1^{10}\\ \Rightarrow\left(x-3\right):2=10-49-1\\ \Rightarrow x-3=-38.2\\ \Rightarrow x=-76+3\\ \Rightarrow x=-73\)