Question

Tìm x:

115+5 (x-4)=120

Answer 1

Ta có:

\(115+5\left(x-4\right)=120\)

\(5\left(x-4\right)=120-115=5\)

\(\Rightarrow x-4=1\Rightarrow x=5\)

Answer 2

115+5(x-4)=120

5(x-4)=120-115

5(x-4)=5

x-4=5:5

x-4=1

x =1+4

x =5

Answer 3

=>5 (x-4)=120-115

=>5 (x-4)=5

=>x-4 =1

=>x =5

Answer 4

Tìm x, biết:
a. 115 + 5(x - 4) = 120
<=> 5(x - 4) = 120 - 115
<=> 5(x - 4) = 5
<=> x - 4 = 1
<=> x = 5

Answer 5

115 + 5 . (x - 4) = 120

5 . (x - 4) = 120 - 115

5 . (x - 4) = 5

x - 4 = 1

\(\Rightarrow\) x = 5

Chúc bạn học tốt!