SOLUTION: 18x+4=14y 21y-5x=-22 solve using elimination or substitution method

Question 952021: 18x+4=14y
21y-5x=-22
solve using elimination or substitution method
Answer by macston(5194) (Show Source): You can put this solution on YOUR website!
18x+4=14y Multiply by 3/2.
27x+6=21y Subtract 27x from each side
6=21y-27x For clarity, reverse sides
21y-27x=6
21y-5x=-22 Subtract this equation from above.
-22x=28 Divide each side by -22.
x==-1.273 ANSWER 1: x=-1.273
18(-28/22)+4=14y
-18.86=14y Divide each side by 14
-1.347=y ANSWER 2: y=-1.347
CHECK:
21y-5x=-22
21(-1.347)-5(-1.273)=-22
-28.287-(-6.365)=-22
-21.92=-22
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