Answer:
x ≥ 4
Step-by-step explanation:
Start with: 5x - 9 ≥ 11
Add 9 to both sides: 5x - 9 + 9 ≥ 11 + 9
Divide both sides by 5: 
Simplify: x ≥ 4
Since you are not dividing both sides by a negative number, the greater than or equal to sign faces the same direction.
Answer:
Please check the explanation.
Step-by-step explanation:
Given the equation
-2x² = 4-3 (x + 1)
-2x² = 4-3x-3
-2x² = -3x -7
0 = 2x² -3x -7
We know that the degree of the equation is the highest power of x variable in the given equation.
In the equation 0 = 2x² -3x -7 the highest power of x variable in the given equation is 2.
Thus, the degree of the equation is 2.
Also in the equation 0 = 2x² -3x -7, the unknown variable is 'x'.
Let us determine the value 'x'
2x² -3x -7 = 0
Add 7 to both sides


Divide both sides by 2


Add (-3/4)² to both sides




solving



Add 3/4 to both sides


similarly solving


So the solution of the equation will have the values of x such as:

We need to divide for this. Since there are 12 months in a year, we divide his yearly salary by 12.
270,920.64÷12=22,576.72
So, Mr.Castillo's monthly salary is $22,576.72.
Answer:
The expressión is:
10(a+14) = 9a
and the number is:
-140
Step-by-step explanation:
The expression is:
10(a+14) = 9a
then:
10*a + 10*14 = 9a
10a + 140 = 9a
10a - 9a = -140
a = -140
Check:
10(-140+14) = 9*140
10*-126 = 1260