A,5x +x=39-3 mũ 11 : 3 mũ9
7x -x=5 mũ 21 :5 mũ19 +3.2 ² -7
3 mũ x =9
2 mũ x : 2 mũ 5 =1
(17 x-25):8+65=9 mũ 2
(50-6x).18=2 mũ 3 .3 mũ2 .5
(3x-2 mũ4) .7 mũ 3=2.7 mũ4
A,5x +x=39-3 mũ 11 : 3 mũ9 7x -x=5 mũ 21 :5 mũ19 +3.2 ² -7 3 mũ x =9 2 mũ x : 2 mũ 5 =1 (17 x-25):8+65=9 mũ 2 (50-6x).18=2 mũ 3 .3 mũ2 .5 (3x-2 mũ4) .
By Peyton
`3^x`=`3^2`
=> x=3
`2^x`/`2^5`=1
=> `2^x`/`2^5`=`2^0`
=> x=5