SOLUTION: Good day may you please help me with the following question. solve the following pair of simultaneous equations. 3/5x - 4y = -1 0.8x - 3.5y = 1/2

Algebra ->  Quadratic Equations and Parabolas -> SOLUTION: Good day may you please help me with the following question. solve the following pair of simultaneous equations. 3/5x - 4y = -1 0.8x - 3.5y = 1/2      Log On


   



Question 1170412: Good day may you please help me with the following question.
solve the following pair of simultaneous equations.
3/5x - 4y = -1
0.8x - 3.5y = 1/2

Answer by Boreal(15235) About Me  (Show Source):
You can put this solution on YOUR website!
clear fractions
multiply top by 5
3x-20y=-5 bottom by 10
8x-35y=5
top by -8. want to eliminate one of the variables. I will do x, but top by 7 and bottom by -4 will eliminate y
-24x+160y=40 bottom by 3
24x-105y=15 add
55y=55
y=1
x=5
(5, 1)