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Mathematics
Eliezer Gonzales
30 January, 13:07
Y = 3x - 10
y = 2x - 5
+2
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Beck
30 January, 16:03
0
Use subtraction method ...
Y - 3X = - 10
(-Y - 2x = - 5) - Y + 2X = 5
so ...
Y - 3X = - 10
-Y + 2X = 5
-X = - 5
X = 5 Now fill in the 5 for X and Y = 5
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Adelaide Norman
30 January, 16:22
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If you're looking for a solution for both equations and had a choice between the 3 ways of solving it, I would choose substitution for this problem. So ...
2x-5=3x-10
Move like terms to their own sides.
Take 2x away from both sides, and add 10 to both sides. That should leave you with
5=x
Now that you have the x, plug it into the equation that works best for you to solve.
That should be y=2 (5) - 5
y=10-5
y=5
(5,5) is your solution.
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