Question

8,75 x x +1,25 x x = 20

 

Answer 1

( 8,75 + 1,25 ) + x = 20

10 + x = 20

x = 20 - 10

x = 10

Answer 2

\(8,75\times x+1,25\times x=20\\ \left(8,75+1,25\right)\times x=20\\ 10\times x=20\\ x=20:10\\ x=2\)

Answer 3

x x (8,75 + 1,25) = 20

x x 10 = 20

x = 20 : 10

x = 2