Question

Answer 1

3x - 4 = 7

3x = 11

x =\(\dfrac{11}{3}\)

Answer 2

\(\Leftrightarrow3x-4=7\)

hay x=11/3

Answer 3

\(\left(3x-2^2\right).7^3=7^4\\ \Rightarrow3x-4=7\\ \Rightarrow3x=11\\ \Rightarrow x=\dfrac{11}{3}\)

Answer 4

(3x-2² ) = 7⁴:7³

3x-2² = 7

3x      = 7+4

3x      = 11

  x      = 11:3

x       = .....

Answer 5

(3x-2²). 7³= 7⁴

(3x-2²) =7⁴: 7³

(3x-2²) =7

(3x-4) =7

3x= 7+4

3x= 11

=> x= 11/3