All categories

3 years ago

Solve the equation. Show your work. 3x – 10 = 5x + 32

Mathematics

2 answers:

liq [111]3 years ago

4 0

Answer:

-21 =x

Step-by-step explanation:

3x – 10 = 5x + 32

Subtract 3x from each side

3x-3x – 10 = 5x-3x + 32

-10 =2x +32

Subtract 32 from each side

-10 -32 = 2x+32-32

-42 = 2x

Divide each side by 2

-42/2 = 2x/2

-21 =x

Marta_Voda [28]3 years ago

3 0

Answer: $x=-21$

Step-by-step explanation:

To solve the equation you need to find the value of "x".

First, you need to subtract 32 from both sides of the equation:

$3x - 10 -32= 5x + 32-32\\\\3x - 42= 5x$

Now you must subtract $3x$ from both sides of the equation:

$3x - 42-3x= 5x-3x\\\\- 42= 2x$

And finally divide both sides of the equation by 2. Then:

$\frac{-42}{2}=\frac{2x}{2}\\\\x=-21$

You might be interested in

Pete is saving money to buy a used car

Arlecino [84]

Answer:

450 per month

Step-by-step explanation:

5000-1400=3600

3600/8=450

Since Peter already has 1400 dollars saved you can subtract that form the total amount and since he is trying to get the rest in eight months you just divide the difference by eight.

7 0

3 years ago

PLEASE HELP ME FAST

Scorpion4ik [409]

Answer: -0.6

Step-by-step explanation: i mean, its pretty easy ngl

3 0

3 years ago

Read 2 more answers

Teams of four are competing in a quarter mile race each runner must run the same exact distance what is the distance each person

Semenov [28]

440 Yard each
Or
1320 feet each

I think this is what u are asking for but im not sure

8 0

3 years ago

As notas de dois alunos X e Y estão representadas no quadro abaixo. Por meio da variância, qual deles apresentou ser o mais regu

Reil [10]

Answer:

Aluno X

Step-by-step explanation:

A nota média para os alunos X e Y são, respectivamente:

$X_m=\frac{5+3+5+7}{4}=5 \\Y_m=\frac{4+9+4+3}{4}=5$

A variância é definida pela seguinte expressão:

$V=\frac{\sum(X_i-X_m)^2}{n-1}$

Onde n é o numero de termos, neste caso, n = 4.

As variâncias para cada aluno são:

$V_x=\frac{(5-5)^2+(3-5)^2+(5-5)^2+(7-5)^2}{4-1} \\V_x= 2.7\\V_y=\frac{(4-5)^2+(9-5)^2+(4-5)^2+(3-5)^2}{4-1} \\V_y= 7.3$

O aluno X apresentou uma variância menor do que o aluno Y em suas notas e, portanto, apresentou ser o mais regular.

6 0

3 years ago

Please help!! Math!!!!

DanielleElmas [232]

5 - 3z < -10

-5 -5 minus 5 from both sides

-3z < -15

/-3 /-3 Divide both sides by 3 and when you divide by a negative you

switch the inequality sign from < to >

z > -5

6 0

3 years ago

Read 2 more answers