Question

70-5. ( x-3) =45

Answer 1

\(70-5.\left(x-3\right)=45\)

\(\Rightarrow5.\left(x-3\right)=70-45\)

\(\Rightarrow5.\left(x-3\right)=25\)

\(\Rightarrow\left(x-3\right)=25:5\)

\(\Rightarrow\left(x-3\right)=5\)

\(\Rightarrow x=5+3\)

\(\Rightarrow x=8\)

Answer 2

70-5(x-3)=45

5(x-3)=25

x-3=5

x=7

Answer 3

x=8 nha mk nhầm thành x-2