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How do you do the addition elimination method on this 10x plus 3y equals 8 and 2x plus y equals 2?
Wiki User
∙ 14y ago
Your answers are x = 1/2 (.5) & y = 1
Given Equations:
10x + 3y = 8
2x + y = 2
Derived Equations:
y = 2 - 2x
Substitution:
10x + 3 * (2 - 2x) = 8
10x + 6 - 6x = 8
4x + 6 = 8
4x = 2
x = 1/2 = .5
2 * (.5) + y = 2
1 + y = 2
y = 1
Check Answers:
10 * (.5) + 3 * (1) = 8
2 * (.5) + (1) = 2
Wiki User
∙ 14y ago
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