Answer:
(2,-3)
Step-by-step explanation:
2x+2y=-2
3x-2y=12
Add these two equations together to eliminate y
2x+2y=-2
3x-2y=12
-----------------
5x = 10
Divide by 5
5x/5 = 10/5
x = 2
Now we need to find y
2x+2y = -2
2(2) +2y = -2
4+2y = -2
Subtract 4 from each side
4-4 +2y = -2-4
2y = -6
Divide by 2
2y/2 = -6/2
y = -3
Answer:
67.7
Step-by-step explanation:
Because it is the exact same as 67.7 angle n is. So it is 67.7 I went over this recently so I understand your pain!
If the figure is an isosceles trapezoid, then both slanted sides have the same length. 2x+2=4. That gives you 'x', and the line on top is double-x.
1. She made mistake in line c.
2. She added 12 on one side of the equation and subtracted 12 on other side when she was supposed to add 12 on both sides of the equation
Step-by-step explanation:
We will solve the given equation step by step to find her Mistake
a. Distribution property
b. Simplifying
c. Adding 12 on both sides
d. Dividing both sides by 2
By comparing her solution and our solution we can see that she made mistake in line c
So,
1. She made mistake in line c.
2. She added 12 on one side of the equation and subtracted 12 on other side when she was supposed to add 12 on both sides of the equation
Keywords: Linear Equation, Error
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