SOLUTION: please solve the simultaneous equations 5x-2y=13 7x+4y=8

Question 776753: please solve the simultaneous equations
5x-2y=13
7x+4y=8

Answer by FrankM(1040) (Show Source): You can put this solution on YOUR website!
5x-2y=13
7x+4y=8
The fastest way for me is to simply double both sides of first equation;
10x-4y=26 then add the second equation to this .
17x+0y=34
x=2, so 5(2)-2y=13, 10-2y=13, -2y=3, and last, y = -1.5
check by substituting into second equation -
7(2)+4(-1.5)=8
14 - 6 = 8 (yes!)
RELATED QUESTIONS
esay question: solve the simultaneous equations. y=7x+11 and... (answered by josgarithmetic)

solve simultaneous equations algebraically 2y+x=9... (answered by ikleyn)

Using matrix method solve the following simultaneous equations 4x + 2y = 2 5x +... (answered by greenestamps,josgarithmetic)

Good day may you please help me with the following question. solve the following pair... (answered by Boreal)

solve the following simultaneous equations by the substitution technique 4x + y = 9... (answered by stanbon,macston)

Solve the following simultaneous equations by using Cramer�s rule 3x+2y=13... (answered by mananth)

Solve this pair of simultaneous equations by the elimination method: 4x + 2y = -8 x -... (answered by mananth)

solve the following simultaneous equations 3x+2y=12 5x-2y+4 3x+5y=26... (answered by jim_thompson5910)

Solve the simultaneous equations. 3x+4y=-3,... (answered by josgarithmetic)