![]() ![]() Thus, weĮliminate y by multiplying the first equation by Instead, let's use theĪddition method on the given system in the formĪx By C to find the value for x. Back-substitution of 85/31įor y into either of the given equations results Step 5 Back-substitute and find the value for Steps 3 and 4 Add the equations and solve for the Let's eliminate x by multiplying the firstĮquation by 3 and the second equation by -2. The sum of the x-coefficients or the sum of the ![]() Or both equations by appropriate numbers so that Step 2 If necessary, multiply either equation Solve by the addition method 2x 7y - 17 5y ![]()
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