Question

5\(x\) -3 = 4x + 6

7 - 2x = 4x - 67

Answer 1

a)

\(5x-3=4x+6\)

\(\Rightarrow5x-4x=6+3\)

=> x = 9

Vậy x = 9

b)

\(7-2x=4x-67\)

\(\Rightarrow7+67=4x+2x\)

\(\Rightarrow6x=74\)

\(\Rightarrow x=\frac{37}{2}\)

Vậy x = 37 / 2

Answer 2

*5x -3 = 4x + 6

5x - 4x = 6 + 3

=> x = 9

Vậy x = 9.

*7 - 2x = 4x - 67

7 + 67 = 4x + 2x

74 = 6x

=> x = 37/3

Vậy x = 37/3.

Answer 3

5x-3 =4x +6

=> 5x- 4x =3+6

=> x=9

7- 2x =4x -67

-2x-4x = -7-67

-6x = -74

=>x = -74/64

= 37/2