All categories

2 years ago

How can you solve an equation with the variable on both sides?

1 answer:

7 0

You should move the variable to the same side!

best by addition/substraction:

for example:

2x+5=3x

I will "move" the 3x:

2x+5-3x=0

now you can add up the variables: -x+5=0 (x=5)

essentially you can move it to the other side, changing the sign: + to -, - to +

You might be interested in

HELP PLZZZZZZZ STANDARD FORM

liraira [26]

Answer:

- $12n^{2}$ + 12

Step-by-step explanation:

h(n) = -4n + 4 (h o g) (n)

g(n) = $3n^{2}$ - 2

-4( $3n^{2}$ - 2) + 4

- $12n^{2}$ + 8 + 4

- $12n^{2}$ + 12

7 0

2 years ago

What is the solution to the equation below?

lara31 [8.8K]

Answer:

$x=4096$ , Option B

Step-by-step explanation:

Given, $\log_{8}x=4$

Formula needed,

$\log_{a}b=\frac{\log b}{\log a}$

Therefore,

$\log_{8}x=\frac{\log x}{\log 8}$

$\frac{\log x}{\log 8}=4$

${\log x}=4{\log 8}$

$\log x={\log 8^4}$

$x=8^4$

$x=4096$

Option B is correct.

8 0

3 years ago

A circle has center

Fed [463]

Note that the equation of the circle is

(x-h)² +(y-k)² =r²

where centre is (h,k)

the equation of the circle based on the information given

(x-3)² +(y-4)² =r²
and the point on the circle (3,-2)

substitute into the equation

(3-3)² +(-2-4)² =r²

r=6 or r=-6

since r is radius, we reject r=-6 since radius must be nonnegative.

the radius is 6

5 0

1 year ago

The Quadratic Formula gives which roots for the equation 2x2 + 7x = -2?

olya-2409 [2.1K]

Answer:

B. (-7 +/-√33) / 4

Step-by-step explanation:

2x2 + 7x + 2 = 0

x = [-7 +/- √(7^2 - 4*2*2)] / 2*2

x = -7/4 +/- √(33) / 4

= (-7 +/-√33) / 4

7 0

3 years ago

Can someone help me on this

masha68 [24]

The answer to this question is 120winners

6 0

2 years ago