2 years ago

What number makes this statement true 7x-7=2x+8

Mathematics

2 answers:

Nostrana [21]2 years ago

8 0

7x - 2x = 8+7
5x = 15
x = 3

erica [24]2 years ago

5 0

Answer:

Step-by-step explanation:

X=5/3

You might be interested in

How to find the exterior angle sum of a 500gon

seropon [69]

360 deegrees you welcome

6 0

3 years ago

Write the equation of the line that passes through the points (-6,5) and (3,−5). Put your answer in fully reduced point-slope fo

elena55 [62]

Answer:

$\displaystyle y-5=-\frac{10}{9}(x+6)$

Or:

$\displaystyle y+5=-\frac{10}{9}(x-3)$

Step-by-step explanation:

We want to write the equation of a line that passes through the points (-6, 5) and (3, -5) in point-slope form.

Point-slope form is given by:

$y-y_1=m(x-x_1)$

Thus, first, we need to find the slope. We can use the slope formula:

$\displaystyle m=\frac{\Delta y}{\Delta x}=\frac{(-5)-(5)}{(3)-(-6)}=\frac{-10}{9}=-\frac{10}{9}$

Next, we can use either of the two given points. I'll use (-6, 5). So, let (-6, 5) be (<em>x₁, y₁</em>). Substitute:

$\displaystyle y-(5)=-\frac{10}{9}(x-(-6))$

Or, fully simplified:

$\displaystyle y-5=\frac{-10}{9}(x+6)$

Using the other point, we will acquire:

$\displaystyle y-(-5)=-\frac{10}{9}(x-(3))$

Or, simplified:

$\displaystyle y+5=-\frac{10}{9}(x-3)$

8 0

2 years ago

What is the solution of two thirds x=12

joja [24]

Hi there!

To solve this problem, we need to simplify.

2/3x = 12

To isolate x, we should multiply both sides of the equation by the reciprocal of 2/3 to make x equal to a value:

Reciprocal of 2/3 = 3/2

x = 12 * 3/2
x = 18

Hope this helps!

8 0

3 years ago

What is if 40% of a number is 56 what was the original number ,, can u show me how to do it?

ASHA 777 [7]

The number is assumed to be x

x of 40% = 56
x * (40/100) = 56
x = 5600 / 40
x = 140

6 0

3 years ago

A. In the diagram above, angles ABCABC and CBDCBD are

Dovator [93]

Answer:

Step-by-step explanation:

3 0

2 years ago