12x-9=10x-15 Help me answer this please
1 answer:
Answer:
x = -3
Step-by-step explanation:
Given:
12x - 9 = 10x - 15
Now, let's add 15 to both sides of the equation.
12x + 6 = 10x
Now, let's subtract 12x from both sides of the equation.
6 = -2x
Now, let's divide both sides by -2.
-3 = x
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20 + 4 + 40 + 9
Step-by-step explanation:
20 + 4 is 24 and 40 + 9 is 49, so it's pretty much the same thing.
Answer:
There is no error
Step-by-step explanation:
He stated with 15 15x and made 10 for each y=15+10
w+2x=16 ⇒ w=16-2x
x+2w=14 x+2(16-2x)=14
x+32-4x=14
-3x=14-32
-3x=-18 /:(-3)
x=6
w=16-2x=16-2·6=16-12=4
2y+w=-6 ⇒ 2y+4=-6
2y=-6-4
2y=-10 /:2
y=-5
Twenty five percent probability
Answer:
on a graph or a number line
Step-by-step explanation:
