Question

tìm x

200-8.(2x+7)=112

Answer 1

\(200-8\left(2x+7\right)=112\)

\(8\left(2x+7\right)=200-112\)

\(8\left(2x+7\right)=88\)

\(2x+7=88:8\)

\(2x+7=11\)

\(2x=11-7\)

\(2x=4\)

\(x=4:2\)

\(x=2\)

Answer 2

\(200-8.\left(2x+7\right)=112\\ 8.\left(2x+7\right)=200-112\\ 8.\left(2x+7\right)=88\\ 2x+7=88:8\\ 2x+7=11\\ 2x=11-7\\ 2x=4\\ x=4:2\\ x=2\\ Vậyx=2\)

Answer 3

\(200-8.\left(2x+7\right)=112\)

\(\Rightarrow8.\left(2x+7\right)=200-112\)

\(\Rightarrow8.\left(2x+7\right)=88\)

\(\Rightarrow2x+7=11\)

\(\Rightarrow2x=4\)

\(\Rightarrow x=2\)

Vậy x=2.

Answer 4

200-8.(2x+7)=112

=>8.(2x+7)=200-112=88

=>2x+7=88:8=11

=>2x=11-7=4

=>x=4:2=2

Vậy x=2

Answer 5

x=2

Answer 6

\(200-8.\left(2.x+7\right)=112< =>8.\left(2.x+7\right)=200-112< =>8.\left(2.x+7\right)=88< =>2.x+7=88:8< =>2.x+7=11< =>2.x=11-7< =>2.x=4< =>x=4:2< =>x=2\)

Answer 7

x = \(200-16x-56=112\)

x = \(144 -16x=112\)

x = \(-16x+144=112\)

x = \(-16x+144-144=112-144\)

x = \(-16x=112-144\)

x = \(-16x=-32\)

x = \(\dfrac{-16x}{-16}=\dfrac{-32}{-16}\)

x = \(\dfrac{-32}{-16}\)

x = \(2\)