Many simple inequalities can be solved by adding, subtracting, multiplying or dividing both sides until you are left with the variable on its own.
But these things will change direction of the inequality:
Don't multiply or divide by a variable (unless you know it is always positive or always negative)
Answer:
38.5 = x
Step-by-step explanation:
9/ (x+2) = 2/9
Using cross products
9*9= 2(x+2)
Distribute
81 = 2x+4
Subtract 4 from each side
81-4 = 2x+4-4
77= 2x
Divide each side by 2
77/2 = 2x/2
38.5 = x
Answer:
c
Step-by-step explanation:
Answer: 3
Step-by-step explanation: The zeros of a function are the point(s) where the function crosses the x-intercept. In this case, the parabola crosses the x-intercept at the point (3, 0) which means it has a zero of 3.
First one is 7t because the s cancels out and -28/-4 = 7 and the other one would be 78 + 5 + 7 because adding is the opposite of subtracting.
