Question

21х +6 = 3х - 3 help me plz

Answer 1

    21х+6=3х-3

    21х-3х=-3-6

    18х=-9

     х=-1/2

Answer 2

To solve the equation 21x + 6 = 3x - 3, we need to isolate the variable x on one side of the equation. Here's how you can do it:

1. Start by simplifying both sides of the equation by combining like terms. On the left side, combine the terms 21x and 6, and on the right side, combine the terms 3x and -3: 21x + 6 = 3x - 3 Subtract 3x from both sides to move the x terms to one side: 21x - 3x + 6 = -3

2. Simplify further by combining like terms: 18x + 6 = -3

3. Now, we want to isolate the x term. To do that, we need to move the constant term (6) to the other side of the equation. Subtract 6 from both sides: 18x + 6 - 6 = -3 - 6 18x = -9

4. Finally, divide both sides of the equation by 18 to solve for x: (18x) / 18 = (-9) / 18 x = -1/2

Therefore, the solution to the equation is x = -1/2.