3 years ago

What is 9x+1=7x-9? Help, please :) thanks.

Mathematics

1 answer:

dsp733 years ago

3 0

9x + 1 = 7x - 9
-7x. -7x
2x + 1 = -9
-1. -1
2x = -10
Divide by 2
x = -5

You might be interested in

Find the length of the missing side.

Aleksandr [31]

Answer:

Step-by-step explanation:

5 0

2 years ago

If ∆ABC = ∆EDF where the coordinates of A(0,2), B(2,4), and C(2,-1), what is the measure of DF?A-3B-3.1C-5D-5.9Please respond qu

aev [14]

The triangles ABC and EDF are congruent, meaning they have the same side lengths and angles measures.

The measure of DF, as both triangles are congruent, is equal to the measure of BC.

We can calculate the length of BC using the distance formula:

$\begin{gathered} D=\sqrt[]{(x_c-x_b)^2+(y_c-y_b_{})^2} \\ D=\sqrt[]{(2-2)^2+(-1-4)^2} \\ D=\sqrt[]{0^2+(-5)^2} \\ D=\sqrt[]{(-5)^2} \\ D=|-5| \\ D=5 \end{gathered}$

As BC is congruent with DF and BC=5, the length of DF is 5 units.

7 0

1 year ago

Help me with this question please

rjkz [21]

Answer:

Step-by-step explanation:

the answer is A I think

5 0

3 years ago

Find the real solutions of the following equation.<br> If K= x + 1/x-1 <br> and k^2- k=20, find x.

ser-zykov [4K]

X
=
k
2
+
1
2
First one……..

4 0

3 years ago

ANYONE PLEASE HELP ME ANSWER THIS QUESTION AND I'LL GIVE THE BRAINLIEST TO SOMEONE.

Roman55 [17]

It will take her 5 months because you do 50divided by 12 because there is 12 months in a year

4 0

3 years ago