Question

giả hộ mik bài này vs 5(x-3)+2(x-6)=1

Answer 1

5(x-3)+2(x-6)=1

5x-5.3+2x-2.6=1

5x-15+2x-12=1

5x+2x=(1+15+12)

(5+2)x=28

    7x=28

      x=28:7

       x=4

Vậy x=4

k đúng cho mk nha

Answer 2

\(5\left(x-3\right)+2\left(x-6\right)=1\)

\(5x-15+2x-12=1\)

\(7x-27=1\)

\(7x=1+27=28\)

\(x=4\)

Answer 3

5.x-5.3+2.x-2.6=1

5.x-15+2.x-12=1

(5.x+2.x)-(15-12)=1

7.x-3=1

7x=1+3

7x=4

x=4:7

x=4/7

Answer 4

thank you