SOLUTION: Find the solution to each system by the addition (elimination) method. 4s – 5t = 18 6s + 10t = -8

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Question 368295: Find the solution to each system by the addition (elimination) method.
4s – 5t = 18
6s + 10t = -8



Answer by robertb(5830) About Me  (Show Source):
You can put this solution on YOUR website!
Multiply the top equation with 2, having in mind eliminating t: 8s - 10t = 36.
Add corresponding sides with 6s + 10t = -8, to get 14s = 28, or s = 2. Substitute into the bottom equation: 12+10t = -8, or 10t = -20, or t = -2.