Answer:
7
Step-by-step explanation:
x equals a certain number
3x - 2 = 19
add 2 both sides
3x=21
divide 3 both sides
x=7
All of those numbers have a common factor, which is 3. So you divide all of their values by 3.
3:9:15:24
=1:3:5:8
Because the values cannot be divided anymore, this ratio is in it's simplest form.
Answer:
m = 1/2
b = -5
Step-by-step explanation:
The equation of the line of the points (6,-2) and (-6,-8) is y = 1/2x — 5
Hmm, I'd say the answer is,
A) The equation has x = 4 as its only solution
Answer:
9 and -4
Step-by-step explanation:
change the word form to math form so now
x² - 36 = 5x <u>This look like a factoring problem, so we put it equal to 0</u>
x² - 5x - 36 = 0 <u>Now factor</u>
(x - 9) (x + 4) <u>We have to find 2 numbers that give -36 when we multiply and -5x when we add</u>
x - 9 = 0
x = 9
x + 4 = 0
x = -4
you can check by plugin the x value to actual equation.
