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Hi my lil bunny!
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A) Let's solve for x. 
Step 1: Add 7y to both sides.

Step 2: Divide both sides by -3.


Answer : 
~~~~~~~~~~~~~
B) Let's solve for x. 
Step 1: Add 7y to both sides.

Step 2: Divide both sides by -10.


Answer : 
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If this helped you, could you maybe give brainliest..?
❀*May*❀
it's 18 with a remainder of 13. I attached a photo that shows the work of it
B. the diagonals are congruent - the graph represents two equal, parallel lines, making the two segments congruent
Answer:
84. What you did is right.
Step-by-step explanation:
A parallellogram's area is b x h. So the equation is 7 x 12=84.