All categories

3 years ago

What is -3(3y-7)=21-9y

Mathematics

1 answer:

Nina [5.8K]3 years ago

6 0

Answer:

the equation is equivalent, y is any number

Step-by-step explanation:

-3(3y-7) = 21-9y

-9y + 21 = 21 - 9y

-9y = -9y

y=y

any number will satisfy y=y

You might be interested in

X+3y=5<br> -2x-6y=-10<br><br> Solve using elimination

RSB [31]

Slimination
multiply first equaiton by 2
2x+6y=10
add to second equiaotn
2x-2x+6y-6y=10-10
0=0
this is true so therfor they are the same equaiton

so solve
x+3y=5
3y=-x+5
y=-1/3x+5/3

subsituter values for x and get valuse for y

if x=2 then y=1

3 0

3 years ago

Describe the graph of x ≤ −2

Len [333]

<h3>I hope it is helpful for you </h3>

4 0

3 years ago

An investment broker puts 1/12 of his paycheck into a retirement account every quarter? How much of his $84,000 salary is put in

posledela

Answer:

<u>$7000</u> of his salary is put into this account each quarter.

Step-by-step explanation:

Given:

An investment broker puts 1/12 of his paycheck into a retirement account every quarter.

His salary is $84,000.

Now, to find how much is put into this account each quarter.

As given salary = $84,000.

So, amount to put into this account every quarter =

$\frac{1}{12} of\ \$84,000.$

$=\frac{1}{12} \times 84000$

$=\frac{84000}{12}$

$=\$7000.$

Therefore, $7000 of his salary is put into this account each quarter.

6 0

3 years ago

I wanna cry Joseph pls answer this

Xelga [282]

I ain't Joseph but what's wrong?

5 0

2 years ago

F(x)=x+7 g(x)=4x^2-9 h(x)=-2x+1 what is the expression that represents f(x)+h(x)

Ostrovityanka [42]

♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️

$f(x) = x + 7$

$h(x) = - 2x + 1$

Add them up :

$f(x) + h(x) = x + 7 - 2x + 1 \\$

Collect like terms

$f(x) + h(x) = - x + 8$

♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️

7 0

3 years ago