12−x9=11(1 point)
12 - 9x = 11
12−x/9=11(1 point)
To solve this equation, we can start by multiplying both sides of the equation by 9 to get rid of the fraction:
9(12 - x/9) = 9(11)
Expanding the equation, we have:
108 - x = 99
Now, we can solve for x by subtracting 108 from both sides of the equation:
-x = 99 - 108
Simplifying,
-x = -9
Finally, we can solve for x by multiplying both sides of the equation by -1:
x = 9
−20=−5+3x(1 point)
To solve for x, we can start by isolating the variable on one side of the equation.
Subtracting -5 from both sides:
-20 - (-5) = -5 + 3x - (-5)
Simplifying:
-20 + 5 = 3x
-15 = 3x
Next, we divide both sides by 3 to isolate x:
-15 / 3 = 3x / 3
Simplifying:
-5 = x
Therefore, the solution is x = -5.
Solve for x.
20=5−38x(1 point)
To solve for x, we will first isolate the variable on one side of the equation.
Subtracting 5 from both sides:
20 - 5 = 5 - 38x - 5
Simplifying:
15 = -38x
Next, divide both sides by -38 to isolate x:
15 / -38 = -38x / -38
Simplifying:
x ≈ -0.3947
Therefore, the solution is x ≈ -0.3947.