Question

140 - 2 x ( x + 34) = 60

Answer 1

140 - 2 x ( x + 34 ) = 60

\(\Leftrightarrow2\left(x+34\right)=140-\)\(60\)

\(\Leftrightarrow2\left(x+34\right)=80\)

\(\Leftrightarrow x+34=80:2\)

\(\Leftrightarrow x+34=40\)

\(\Leftrightarrow x=40-34\)

\(\Leftrightarrow x=6\)

Answer 2

6 nha

kb nha

Answer 3

\(140-2\times\left(x+34\right)=60\)

\(\Rightarrow2\times\left(x+34\right)=140-60\)

\(\Rightarrow2\times\left(x+34\right)=80\)

\(\Rightarrow x+34=80:2\)

\(\Rightarrow x+34=40\)

\(\Rightarrow x=40-34\)

\(\Rightarrow x=6\)

Học tốt #

Answer 4

140 - 2 x(x+34)=60

=       2x(x+34)=140-60

=       2(x+34)=80

=         x+34=80:2

=         x+34=40

=        x=6

Answer 5

\(x=6\)