1) -3x -7 = 23
To solve for x, we can isolate the variable on one side of the equation.
First, we add 7 to both sides:
-3x -7 + 7 = 23 + 7
-3x = 30
Next, we divide both sides by -3 to solve for x:
(-3x)/-3 = 30/-3
x = -10
Therefore, the solution to the equation is x = -10.
2) 2x + 8 = 4x - 12
To solve for x, we can isolate the variable on one side of the equation.
First, we subtract 2x from both sides:
2x - 2x + 8 = 4x - 2x - 12
8 = 2x - 12
Next, we add 12 to both sides:
8 + 12 = 2x - 12 + 12
20 = 2x
Then, we divide both sides by 2 to solve for x:
20/2 = (2x)/2
10 = x
Therefore, the solution to the equation is x = 10.
Solve the following equations and show work.
-3x-7=23
2x+8=4x-12
1 answer