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Solve the system by addition. Give the x - value of the solution. 2X +5y = 3 and 5x - 3y = 23

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Solve the system by addition. Give the x - value of the solution. 2X +5y = 3 and 5x - 3y = 23

system-of-equations

asked Dec 2, 2013 in ALGEBRA 1 by homeworkhelp Mentor

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Given equations are 2x+5y = 3 ----------> (1)

5x-3y = 23 ------------> (2)

Add the equations.

2x+5y = 3

5x-3y = 23

_________

7x+2y = 26

Subtract 2y from each side.

7x+2y-2y = 26-2y

7x = 26-2y

Divide to each side by 7.

7x/7 = (26-2y)/7

Solution x = 26/7-2y/7

answered Dec 2, 2013 by william Mentor

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