3 years ago

2(x+3)-2(x+1)7z=3x-1 which two are possible correct first steps in solving this equation ?

1 answer:

3 0

Step-by-step explanation:

first you do 3×1 get your answer and then × it by 2 then your answer you get you × it by 3 what you get - by 2 what you get you - by 1 and you get your answer hope I helped

You might be interested in

An expression is shown 2/3 divided by3/4

kiruha [24]

The quotient is 8/9.

8 0

4 years ago

Someone plz help me

erma4kov [3.2K]

The 1st layer has 1 cubes, which is also 1²,
the 2nd layer has 4 cubes, which is 2²
the 3rd layer has 9, which is 3²
the nth layer has n² cubes

4 0

3 years ago

You have a collection of 30 coins, all of which are dimes and quarters. The total of your collection is $5.10 how many of each k

aksik [14]

14 quarters and 16 dimes
I think ?

8 0

3 years ago

4. f(x)=-x?-11x – 28

alex41 [277]

Answer:

-17

Step-by-step explanation:

f(-x)-11x-28

-11(-1)-28

11-28

-17

6 0

4 years ago

The difference between the solutions to the equation x2 =a is 30 what is a ?

Mademuasel [1]

Given equation is $x^2 = a$

In general solution of $x^2 = b$ is $x = + \sqrt{b}$ and $x = - \sqrt{b}$

So the solution of given equation is $x = + \sqrt{a}$ and $x = - \sqrt{a}$

Now difference between them is 30.
So we can write
$\sqrt{a} - (- \sqrt{a}) = 30$
$\sqrt{a} + \sqrt{a} = 30$
$2 \sqrt{a} = 30$
$\sqrt{a} = 15$

On squaring both side
$( \sqrt{a})^2 = (15)^2$
$a = 225$

4 0

4 years ago