Answer:
x=2°
Step-by-step explanation:
The given angles are corresponding angles.
Corresponding angles are congruent.
7x+3=8x+1
2=x
x=2
You can only add exponents if you are multiplying two of the same variable together. For example,

You take them away if you are dividing.
<span>

In a polynomial equation, you can add together two of the same variable if they have the same exponent
</span>

Or you can take them away in a similar fashion,
<span>

But you cannot add two (or more) different exponents,
</span>

(it does not get any simpler)
I hope this has answered your question, if not, leave a comment and I'll update the answer.
The answer is 3 for sure.
<span>The sum of the interior angles of a triangle is 180 degrees
</span>
4x + 5x + 6x = 180
15x = 180
x = 180/15
x = 12
<span>The measure of the smallest angle = 4x = 4*12 = 48</span>°
Answer:
D) 7
Step-by-step explanation:
7x280= 1960
1x440= 440
440+1960= 2400