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Solve for x and y
7x - 3y =23
2x - 4y = -8


1 Answer

4 votes
Ok soo

First substitute the value for x Ok x=23/7 + 3/7 y. 2x-4y=-8

Second solve the equation 2(23/7 +3/7 y) -4=-8

Third substitute the value of y do y=51/11

Forth solve the equation X=23/7 +3/7 x 51/11

Fifths the possible solution is x=58/11

Sixth check the solution (x,y)=(58/11, 51,11)

Seventh simplify 7x58/11-3x51/11=23. 2x58/11-4x51/11=-8

The ordered pair is a solution 23=23. -8=-8

(x,y)=(58/11, 51,11)



User Matt Oestreich
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