Mathematics
gmt9678
63

Solve each system using elimination. 3x+3y=27 x-3y=-11 9. 2x+4y=22 2x-2y=-8 11. 5x-y=0 3x+y=24

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(2) Answers
ReginaldPogue

Add those equations together 1.  4x = 16, x = 4 2. Multiple the second one by 2 2x+4y=22 4x-4y=-16 6x = 6, x = 1 3. Add them together 8x = 24, x = 3

ElizbethLiddle208

In 2, we are asked to solve the systems of equations to solve for the variables using elimination.   3x + 3y = 27-3(x - 3y = -11)      12 y  = 60        y = 5        x = 4  2x + 4y = 22 2x - 2y = -8     6y  = 30     y   = 5     x   = 1   5x - y = 0  3x  + y = 24  8x    =  24   x = 3   y = 15

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