All categories

2 years ago

7x-5=30 I need this explained for me please

Mathematics

2 answers:

-Dominant- [34]2 years ago

6 0

Step-by-step explanation:

7x-5=30

Firstly -5 will cross the equality sign and become +5. so we'll have

7x=30+5=35

7x=35 we'll divide both sides by 7

giving u

7x/7=35/7

=x=5

therefore x=5.

CONFIRMATION

7*5-5=30

PLS MARK ME AS BRAINLIEST

Salsk061 [2.6K]2 years ago

4 0

Answer:

x = 5.

Step-by-step explanation:

<u>Solve for X:</u>

7x - 5 = 30
= 7 * x
= 7(5)
= 35 - 5
= 30
x = 5.

<h2>Hence, answer is x = 5.</h2>

You might be interested in

The sum of three consecutive even integers is 66. Which equation represents the scenario? x = 66

vesna_86 [32]

Answer:

(D)

x + (x + 2) + (x + 4) = 66

5 0

3 years ago

Two planes just took off from St. Louis, MO. The first plane is traveling 3.5 times as fast as the second plane. After Traveling

Yanka [14]

Answer:

Speed of first plane is 350 miles per hour

Speed of second plane is 100 miles per hour

Step-by-step explanation:

Let the speed of the second plane be X

Then the speed of the first plane will be 3.5 X

Distance travelled by first plane is 9.5 *X

Distance travelled by second plane is 9.5 * 3.5 X

Difference of distance between the two plane is

$9.5 * 3.5 X - 9.5 *X = 2375\\23.75 X = 2375\\X = 100$ miles per hour

Speed of first plane is 3.5 *100 = 350 miles per hour

Speed of second plane is 100 miles per hour

8 0

3 years ago

mrs. krin has $300 deducted from her checking account every month for her car payment. Shealso has $150 deducted every month for

Goshia [24]

she gets 5400 dollars taken out a year for both car payments and insurrance.

4 0

3 years ago

(2b^2 - 5b) - (7b + 3b^2)

Marta_Voda [28]

Answer:

-13b

Step-by-step explanation:

(2b^2 - 5b) - (7b + 3b^2)

-3b^2 - 10b^2 = -13b

8 0

3 years ago

How do I solve this?

Alex777 [14]

Solution

for this case with the first table we can find the equation of the line using the following formula for the slope:

$m_1=\frac{y_2-y_1}{x_2-x_1}=\frac{0-2}{-1-0}=2$

And the y intercept would be b=2

Then the equation for the first equation is:

y= 2x +2

the second equation is given by:

y= -2x-2

then the best solution would be:

Function 1 has a positive slope and a positive y-intercept. Function2 has a negative slope and a negative y-intercept

5 0

1 year ago