Question

100 - 3x = - 130

Answer 1

\(100-3x=-130\)

\(3x=100-\left(-130\right)\)

\(3x=230\)

\(x=230:3\)

\(x=\dfrac{230}{3}\)

Vậy .....

Answer 2

\(100-3x=-130\)

\(\Rightarrow3x=230\Rightarrow x=\dfrac{230}{3}\)

Vậy.........

Chúc bạn học tốt!!!

Answer 3

100 - 3x = -130

3x = 100 + 130

3x = 230

x = 230 : 3

x = \(\dfrac{230}{3}\)

Answer 4

100-3x=-130

3x=-130+100

3x=-30

x=-30:3

x=-10

Vậy x=-10

Answer 5

sai rồi

Answer 6

\(100-3x=-130\\ -3x=\left(-130\right)-100\\ -3x=-230\\ x=\left(-230\right):\left(-3\right)\\ x=\dfrac{230}{3}\)