Answer:

Step-by-step explanation:

Add
and
on both sides.

Add or subtract like terms.

Divide
on both sides.


is the independent variable now.
Answer:
4.7
Step-by-step explanation:
Just do 28/6 and the simplify it to 14/3 and divide and get 4.6 repeating round it to 4.7
Answer:
the third angle= 180-x-(4x+15)
Step-by-step explanation:
if we subtract the two other angles the result will be the measure of the last one
Layla bu la 520 and glue 729