Let the first be x and the second be x + 4
x+ x + 4 = 56
2x+4 = 56
2x = 52
∴x= 26
please mark as brainliest
2.5y + 3x = 27
5x - 2.5y = 5
Align the variables to make solving this easier.
2.5y + 3x = 27
-2.5y + 5x = 5
You can see that the 2.5y and -2.5y cancel each other out. Then add the 3x and 5x, and 27 + 5.
3x = 27
5x = 5
8x = 32
Divide both sides by 8.
x = 4
Now input that x into one of the equations to get y.
2.5y + 3(4) = 27
2.5y + 12 = 27
2.5y = 15
y = 6
The answer to this system of equations is x = 4, y = 6. (4, 6)
For this case we must find an expression equivalent to:

By definition of power properties we have to meet:

Then, we can rewrite the expression as:

Answer:

Answer:
-2
Step-by-step explanation:
First you should write out the entire word equation into one you may recongnize:
7x - 12 = -3x - 32
After this, solve for x:
7x + 3x = 12 - 32
<u>10x</u> = <u>-20</u>
10 10
x = -2
the number is -2
Hi!
When we write a number in scientific notation, we write it like this:
N × 
N = a number between one and 10
x = negative if the decimal is moved to the right. positive if moved to the left.
Okay, so
we need to move the decimal in the number <span>0.0059
to the right to make it
between one and 10.
0.0059
00.059
000.59
0005.9
5.9N = 5.95.9 </span>×

Since we moved the decimal to the right 3 times,
x = -35.9 × 
^ the answer
Hope this helps! :)