Answer:
I believe that answer would be D that is the most Accurate.
X=13 is your answer 49-23= 26 divided by 2 is 13
Answer:
(7-2x)3 =9-10x
x= -3
Step-by-step explanation:
we let the number to be x.
twice a number=2x is decreased by 7 that is to say 7-2x, is multiplied by 3, we have (7-2x)3.
the result is 9 less than 10times the number which is =9-10x.
so bringing all these together we have;
(7-2x)3=9-10x.
what is the number?
solving, we have:
(7-2x)3=9-10x
21-6x=9-10x
21-9= -10x+6x
12= -4x
dividing both sides by -4 we have our number
x= -3.
for proof we can substitute x=-3 into the equation.
21-6(-3) =9-10(-3)
21+18=9+30
39=39
Answer:
See explanation
Step-by-step explanation:
There are 4 red tulips and 9 white tulips in a vase.
1. You can group 1 red tulip and 9 white tulips. This group of tulips consists of
1 red tulip + 9 white tulips = 10 tulips.
If there were 4 red tulips, then
4 - 1 = 3 red tulips left.
In total,
10 tulips + 3 remaining red tulips = 13 tulips.
2. You can group 4 red tulips and 6 white tulips. This group of tulips consists of
4 red tulips + 6 white tulips = 10 tulips.
If there were 9 white tulips, then
9 - 6 = 3 white tulips left.
In total,
10 tulips + 3 remaining white tulips = 13 tulips.
infinite solutions
expand and simplify the right side of the equation
3 + 5n = 5n + 10 - 7
3 + 5n = 5n + 3
Since both sides of the equation are equal then any value of n will make the equation true.
Thus there are an infinite number of solutions.
