Question

E) 3 - 2x = 15 what is x​

Answer 1

Answer:

x = -6

Step-by-step explanation:

We have to find the value of x in given equation $3 -2x = 15$

Step 1 : We have to eliminate 3 from LHS

We proceed this by subtracting 3 from both the sides to balance the equation

$3 - 2x = 15\\3 - 3 -2x = 15 - 3\\-2x = 12$

Step 2: Now, we have to eliminate -2 from LHS

We proceed this by dividing both sides by -2

$-2x = 12\\\frac{-2x}{-2} = \frac{12}{-2} \\x = -6$

Therefore we have x =-6

Answer 2

3 - 2x = 15

-2x = 15 - 3

-2x = 12

x = 12 ÷ 2

x = 6