All categories

4 years ago

3(x-3)+18=3(x+3) Solve for x

Mathematics

2 answers:

andrey2020 [161]4 years ago

7 0

Answer:

x can be anything. (Infinite solutions)

Step-by-step explanation:

$3\left(x-3\right)+18=3\left(x+3\right)$

Expand:

$3x-3*3+18=3x+3*3$

$3x+9=3x+9$

Subtract 9 from each side:

$3x=3x$

Subtract 3x from both sides:

$0=0$

Both sides are equal, and hence this equation is true for any "x" value.

Sedbober [7]4 years ago

4 0

It’s 30 but icould be wrong so sorry if I’m wrong

You might be interested in

If you were to solve the following system by substitution, what would be the best variable to solve for and from what equation?

VashaNatasha [74]

Answer: B. x, in the second equation

Step-by-step explanation:

The given system :

$2x+6y=9...................(1)\\\\3x-12y=15.........................(2)$

To apply the substitution method , first we need to select the best variable and a equation which is easy to simplify.

From the given system equation (2) have all the numbers which are multiples of 3.

Then we divide 3 on both sides of equation (2), we get

$x-4y=5\\\\\Rightarrow\ x=4y+5$

Therefore, the best variable to solve for and from what equation is x, in the second equation.

7 0

3 years ago

Alice purchased paint in a bucket with a radius of 9 in. and a height of 9.5 in. The paint cost $0.09 per in3.

PilotLPTM [1.2K]

217.46 hope this helps

7 0

4 years ago

Graph the function. For the function whose graph is shown below, which is the correct formula for the function? y = –x – 1 y = x

rusak2 [61]

You forgot to mention the graph.
So, I make the graph of both given functions and you will compare your graph with them.

First, y= -x-1
put y=0 you get point (-1,0) called x-intercept
put x=0 you get point (0,-1) called y-intercept
join both the points, you will get the graph
Graph is attached in the picture.

Second, y= x+1
put y=0 you get point (-1,0) called x-intercept
put x=0 you get point (0,1) called y-intercept
join both the points, you will get the graph
Graph is attached in the picture.

4 0

3 years ago

HELP MEEEE I really need help

BigorU [14]

Answer:

4 1/4

Step-by-step explanation:

you have to find a equal denominator then simplify

6 0

4 years ago

Mikhael bought refreshments. Sandwiches were $3 each and bottles of water were $0.75 each. He spent $318.75 on a total of 200 it

olga nikolaevna [1]

Sandwiches = S
Water = W

S + W = 200
S +W -W = 200-W
S = 200-W

$3S + $0.75W = $318.75
$3(200-W) + $0.75W = $318.75
$600 - $3W + $0.75W = $318.75
$600 -$2.25W = $318.75
$600 - $600 - $2.25W = $318.75 - $600
- $2.25W = -$281.25
-$2.25W/-$2.25 = -$281.25/-$2.25
W = 125

S = 200-125
S = 75

Mikhael bought 75 sandwiches and 125 bottles of water

CHECK
$3S + $0.75W = $318.75
$3(75) + $0.75(125) = $318.75
$225 + $93.75 = $318.75
$318.75 = $318.75

3 0

4 years ago