<h3> Δ</h3><h3> <u>E</u><u>X</u><u>A</u><u>M</u><u>P</u><u>L</u><u>E</u></h3>
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<h3>I hope i can help</h3>
Step-by-step explanation:
The sum of three angle of any triangle is <u>1</u><u>8</u><u>0</u><u>°</u>....
Answer:
B
Step-by-step explanation:
Answer: A
Step-by-step explanation:

We need to get this form: 
we need to begin by isolating y on the left side. To do this, we must subtract 4x.

Rewrite it so that we get this form: 

Since y needs to be completely isolated, divide by 4.

Divide;

For Step 2 try subtraction property of equality, and for step 4 try multiplication property of equality.