Question

5x+3x=3⁶:3²x4+12
5x+x=39-32
9^x-1=9
2^x:2⁵=1

Answer 1

b ) 5x + x = 39 - 3²

=> 6x = 39 - 9

6x = 30

x = 30 : 6

x = 5

a ) 5x + 3x = 3⁶ : 3² . 4 + 12

=> 8x = 3^6-2 . 4 + 12

8x = 3⁴ . 4 + 12

8x = 81 . 4 + 12

8x = 324 + 12

8x = 336

x = 336 : 8

x = 42

k nha !

Answer 2

1) 8x = 81 x 4 + 12

    8x = 324 + 12

    8x = 336

      x = 336 : 8

      x = 42
2) 6x = 30

      x  = 30 : 6

      x  = 5

nha ^^