SOLUTION: 1.5x-2y=-0.25 3x+1.5y=6.375 Solve with addition method

Algebra.Com
Question 146221: 1.5x-2y=-0.25
3x+1.5y=6.375
Solve with addition method

Answer by nabla(475)   (Show Source): You can put this solution on YOUR website!
First, multiply the first equation by -2.
giving
-3x+4y=.5
3x+1.5y=6.375
Now we can add them.
5.5y=6.875
y=1.25

And x must be
1.5x-2(1.25)=-.25
1.5x=2.25
x=1.5
check:
1.5(1.5)-2(1.25)=-.25
3(1.5)+1.5(1.25)=6.375

RELATED QUESTIONS

Solve by the addition method: 3x-2y=-1... (answered by Alan3354)
1. points are (-4,7) and (2,x) m=-1/3, find for X 2. 1/2x-3/4y=-4 1/4x+3/2y=13... (answered by lynnlo)
Solve each system of equations. If no solution explain why! Substitution method x-y=3 (answered by Alan3354)
solve by the addition method Please help! 5x-2y=-1 7y=24-3x (answered by checkley77)
Solve the system using the substitution method or the elimination-by-addition method. 2x (answered by solver91311)
solve using the addition method A) 2x-6y=-2 5x+y=27 B) 4x-2y=-6 3x+y=-7... (answered by solver91311)
use multiplication with the addition-or-subtraction method to solve the system: 5x + 2y... (answered by mananth)
Solve using addition method x+3y+z=6 3x+y-z=-2... (answered by Alan3354)
Solve by addition method. 2/3x - 1/2y = 1 1/3x - 1/4y =... (answered by mananth)
The Addition Method x-2y=-1 Solve system by addition... (answered by jim_thompson5910,Mathtut)