- 7s+12=-9s what is the answer

2 answers:

7 0

The same variable can not be on both sides of the equation.

Add 7s to both sides so that the variable is only on he right side.

12=-2s

Divide each side by -2

s=-6

To check your answer, substitute -6 in for s

-7(-6)+12=-9(-6)
42+12=54
54=54

s=-6

Hope this helped! Tell me if you want me to help with anything else or explain this in a different way :)

weqwewe [10]3 years ago

6 0

12=-9s+7s
12=-2s
-6=s
Hope this helps

You might be interested in

Question 6 (0.5 points)

Sunny_sXe [5.5K]

Answer:

Step-by-step explanation:

(9-6)/2 = 3/2 = 1.5

(-8-3)/2 = -11/2 = -5.5

(1.5, -5,5)

5 0

3 years ago

A man paid the bank $4,080 at the end of three years. This was the amount borrowed plus 12% interest for three years. How much m

BabaBlast [244]

Y=4080(0.82)^3 = 2249.58

(rounded to the nearest tenth)

3 0

3 years ago

When four times a number is decreased by 7, the result is 1. What is the number?

Shalnov [3]

Answer: The number is 1.

Step-by-step explanation:

create the formula from the problem

4x -7 = 1

move the seven to the other side by adding seven to both sides

4x (+7) -7 = 1 (+7)

4x = 8

then to get the x by itself, divide both sides by 4

4x/4 = 8/4

x = 2

You can check your work by plugging the x back into the original problem

4 (2) -7 = 1

8 -7 = 1

1 = 1 (this means it is correct)

6 0

3 years ago

What is 3/tan(30°) in radical form? (meant to be a fraction)

Kitty [74]

$\bf y=\cfrac{3}{tan(30^o)}\implies y=\cfrac{3}{\frac{sin(30^o)}{cos(30^o)}}\implies y=\cfrac{3}{\frac{\quad \frac{1}{2}\quad}{\frac{\sqrt{3}}{2}} }\implies y=\cfrac{3}{\frac{1}{2}\cdot \frac{2}{\sqrt{3}}}
\\\\\\
y=\cfrac{3}{\quad \frac{1}{\sqrt{3}}\quad }\implies y=\cfrac{3}{1}\cdot \cfrac{\sqrt{3}}{1}\implies y=3\sqrt{3}$