Question

Tìm X :
- 8,75 × x + 1,25 × x = 20

 

Answer 1

tham khảo

8,75 * x + 1,25 * x = 20
<=>10*x=20
<=>x=20 : 10 
<=> x=2

Answer 2

x=2

Answer 3

\(-8,75\times x+1,25\times x=20\)

 \(x\times\left(-8,75+1,25\right)=20\)

\(x\times-7,5=20\)

\(x=20\div\left(-7,5\right)\)

\(x=-2.6\)

Answer 4

-8,75 . x + 1,25 . x = 20
=>(-8,75 +1,25).x=20

-7,5.x=20
x =20 : -7,5
 x=-2,6