April 7, 2008

Algebra: Linear Equations in Two Unknown

Given two linear equations, the two equations are solved simultaneously for x and y.

ProblemGiven EquationsSolution
16x+3y = 45; 8x+4y = 60x = 14; y = -13
23x-9y = -114; 7x+4y = 84x = 4; y = 14
34x+8y = 104; 5x+y = 76x = 14; y = 6
44x+3y = 59; 2x+9y = 97x = 8; y = 9
56x+y = 21; 2x+5y = 49x = 2; y = 9
63x+3y = 30; x+3y = 14x = 8; y = 2
75x+7y = 139; 4x+5y = 104x = 11; y = 12
86x+7y = 125; 7x+4y = 100x = 8; y = 11
95x+2y = 60; x+8y = 50x = 10; y = 5
109x+y = 16; 4x+9y = -10x = 2; y = -2
11x+8y = 63; 6x+4y = 70x = 7; y = 7
128x+4y = 44; 6x+y = 31x = 5; y = 1
132x+6y = 96; 3x+6y = 102x = 6; y = 14
147x+4y = 63; 5x+8y = 117x = 1; y = 14
158x+5y = 102; 6x+8y = 102x = 9; y = 6
166x+y = 11; 5x+7y = 40x = 1; y = 5
17x+8y = 41; 8x+6y = 38x = 1; y = 5
18x+2y = 0; 5x+7y = -12x = -8; y = 4
196x+4y = 20; 6x+4y = 20x = 2; y = 2
20x+3y = 22; 6x+3y = 42x = 4; y = 6
215x+5y = 95; x+2y = 29x = 9; y = 10
225x-8y = 52; 8x+y = 97x = 12; y = 1
239x+9y = 234; 8x+y = 124x = 14; y = 12
249x+6y = 93; 8x+6y = 88x = 5; y = 8
257x+4y = 41; 5x+7y = -8x = 11; y = -9
262x+6y = -48; 7x+9y = -24x = 12; y = -12
273x+3y = 33; 7x+9y = 89x = 5; y = 6
283x+9y = 96; 3x+9y = 96x = 5; y = 9
299x+2y = 62; 5x+3y = 59x = 4; y = 13
30x+6y = 72; 7x+8y = 164x = 12; y = 10
317x+4y = 43; 8x+4y = 44x = 1; y = 9
324x+6y = 88; 3x-5y = -29x = 7; y = 10
337x+4y = 18; 6x+3y = 15x = 2; y = 1
347x+2y = 32; 8x+8y = 88x = 2; y = 9
35x+3y = 53; 4x+3y = 95x = 14; y = 13
366x+9y = 87; 2x+6y = 38x = 10; y = 3
373x+9y = 36; 4x+2y = 18x = 3; y = 3
384x+5y = 93; 6x+6y = 120x = 7; y = 13
392x+5y = 51; 8x+5y = 69x = 3; y = 9
403x+9y = 126; 5x+9y = 138x = 6; y = 12
418x+7y = 124; 2x+7y = 94x = 5; y = 12
423x+2y = 2; 7x+6y = -10x = 8; y = -11
439x+6y = 135; 8x+7y = 140x = 7; y = 12
447x+y = 34; 4x+2y = 28x = 4; y = 6
459x+6y = 33; 8x+7y = 46x = -3; y = 10
468x+y = 54; 3x+5y = -26x = 8; y = -10
474x+7y = 116; 5x+7y = 124x = 8; y = 12
482x+4y = 38; 2x+5y = 42x = 11; y = 4
495x+5y = 75; 6x-8y = -64x = 4; y = 11
509x+8y = 126; 6x+2y = 54x = 6; y = 9