3. If x= 1, y = 2 is the solution of an equation 4x+ay is equal to 12. Then find a ?
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Answer:
a = 4
Step-by-step explanation:
If x= 1, y = 2 is the solution of an equation 4x+ay is equal to 12. Then find a
Imputing the values:
4(1) + a(2) = 12
= 4 + 2a = 12
= 2a = 12 - 4
= 2a = 8
= a = 8/2
= a = 4
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