algebra
posted by Shannon .
Solve by the elimination method:
0.3x0.2y=4
0.4x+0.5y= 29/19 (fraction)??
Please Help I do not understand Algebra!!

to solve this equation by elimination method, you need to make sure that the number in each one of the equation is the same.
you have to pick a no that will fit.
4x0.3x0.2y=4
3x0.4x+0.5y=29/19
1.2x0.8y=16
1.2x+1.5y=87/19
you then cross out the no that is the same and what you have let is:
0.8y=16
+1.5y=87/19
then you subtract the remaining equation, so it will be:
0.8y(+1.5y)=2.3y
1687/19
the answer you get will be divided by 2.3y and that is how you get the value of y
after you get the value of y, you substitute the value of y into one of the equation that was not multiplied by any no, which is the original equation, then you get the value of x .and yeah that's all. i hope this was helpful 
4x8=6
Respond to this Question
Similar Questions

Algebra
Solving system of linear equations by using the apropiate method name the method and the x,y coordinates 1)X=4y+8 2x8y=3 2)3x7y=6 elimination method 2x+7y=4 (2,0) 3)5x2y=12 elimination method 3x2y=2 (7,23/2) 4)9x8y=42 elimination … 
Algebra II
How do you solve the linear equations x+y=5 3xy=3 by use of the Substitution Method? 
algebra
solve by the elimination method 3x+4y=3 6x+8y=6 help please 
algebra
I need help! Solve by the elimination method: 7r9s=12 9r+7s=96 When I do this, I get a crazy fraction, and I know the answer is a point. (r,s) But what I'm getting is ridiculous. I got 564/130=s! That has to be totally wrong! 
algebra
7r3s=18 3r+7s=16 Solve by the elimination method, please. 
math elimination method
elimination method really confuses me. solve by elimination method 5r 3s = 17 3r + 5s =17 A. solution is ______ (ordered pair, integer or fraction) B. Infinitely many C. No Solution 
Algebra
Solve by elimination method. 7r3s=14 3r+7s=64 Could never figure out the elimination method. Would love some help with this one. Thanks 
Algebra/Elimination method
Solve using the elimination method. If the system has no solution or an infinite number of solutions, state this. 27x  18y = 180 9x + 6y = 60 
algebra
Please help solve with elimination method. 6x+6y=18 7x+5y=9 
Algebra 1
bobpursey, In this problem you helped me with earlier: Solve using any appropriate method. y = 2×  5, y = ½× + 1 Substitution, substitute for y. 2×5=½ × + 1 3/2 x=6 x=4 y= 2*45=3 How did you choose which method you were going …