Answer:
X=23
Step-by-step explanation:
You should know that a triangle =180 degrees
Add all your angles together and =180
66+2x+3+3x-4=180
add similar terms
5x+65=180
Move your 65 to the other side
5x=115
x=23
(Optional)
to check if your answer is right substitute your x and add all angles together you should get 180 degrees.
Answer: 184 square inches
Step-by-step explanation:
2(bh/2) + bh + bh + bh
( 6) (4) + (6) (10) + (5)(10) + (5) (10)
= 24+ 60+ 50 + 50
= 184 square inches
If expression is like this :


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If expression is like this :



Answer:
2y-2n-3a
Step-by-step explanation:
(7y-2n) - (5y+3a)
7y-2n-5y-3a
2y-2n-3a