SOLUTION: Solve by the substitution method. What is the solution to the system? 4x+10y=12 3x-10y=9

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Question 1181672: Solve by the substitution method. What is the solution to the system?
4x+10y=12
3x-10y=9
Answer by ikleyn(52793) About Me  (Show Source):
You can put this solution on YOUR website!
.

Add the equations to get  7x = 21,  x = 21/7 = 3.


Then from either of the two given equations find y, substituting there x= 3.

Happy calculations (!)