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Mathematics
Iris Gillespie
16 December, 00:03
Solve for x and y:
3x + 7y = 22
123 + 28y = 88
+4
Answers (
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Presley Shah
16 December, 03:20
0
1.
2.
Step-by-step explanation:
1. Since this is a equation we know we have to get the variables to one side and the constants/rational numbers to the other. So you take 7y and you add - 7y. You do that to the other side which will give you - 4y=22. Since we cant have a negative variable, you flip the y to positive and flip the constant to negative leaving you 4y=-22. Then you distribute y leaving you y=-5.5
2. since we know the constants must be on 1 side of the equal sign, we subtract 123 on both sides, leaving us with 28y=-35. Distribute y and you get y=-0.8
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