Answers

2015-08-25T18:43:39+08:00

This Is a Certified Answer

×
Certified answers contain reliable, trustworthy information vouched for by a hand-picked team of experts. Brainly has millions of high quality answers, all of them carefully moderated by our most trusted community members, but certified answers are the finest of the finest.
Example 1: Solve the following system by substitutionSolution:Step 1: Solve one of the equations for either x = or y =2x+3y=5, x+y=5 . We will solve second equation for y , x+y=5 .. y=5-x.Step 2: Substitute the solution from step 1 into the second equation. 2x+3(5-x)=5Step 3: Solve this new equation. 2x+15-3x=5,=, -x+15=5,=,-x=5-15,=, -x=-10, -(-x=-10), x=10..Step 4: Solve for the second variable.y=5-x,,= y=5-10 = ,y=-5
 solution is: (x, y) = (10, -5)
0