Answer:
x=5
y=2
Step-by-step explanation:
5x + 3y= 31
-6x - 3y = -36 (multiple by -3)
-x=-5
x=5
2(5)+y=12 or 25 + 3y= 31
10+y=12 3y=6
y=2 y=2
Answer:
The correct answer is D. 8
Step-by-step explanation:
In order to find this, solve by multiplying the top equation by -6. Then add the equations together to get the x values to cancel. Then you may solve for y.
-2x - 3/2y = -6
2x - 3y = -30
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9/2y = -36
y = 8
You find the total of two numbers by adding them.
13.450 + 15.125 = 28.575
The total length of the two sheets of paper is 28.575 cm.
Answer:
y = 7
Step-by-step explanation:
3x = 5x - 8
8 = 2x
x = 4
3x = 5 + y
3(4) = 5 + y
12 = 5 + y
7 = y
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