SOLUTION: Solve the system of equations by the substitution method. (If there is no solution, enter NO SOLUTION.)
{0.25x + 0.4y = −3
{0.5x − 0.6y = 8
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Question 1046442: Solve the system of equations by the substitution method. (If there is no solution, enter NO SOLUTION.)
{0.25x + 0.4y = −3
{0.5x − 0.6y = 8
Found 2 solutions by Boreal, MathTherapy:
Answer by Boreal(15235) (Show Source): You can put this solution on YOUR website!
{0.25x + 0.4y = −3
{0.5x − 0.6y = 8
Multiply the top by -2, and the x will be the same with opposite signs.
-0.50x-0.8y=6
0.5x-0.6y=8. Now add them.
-1.4y=14
y=-10
Substitute into the first to get x
0.25 x-4=-3
0.25x=-1
x=-4
Check by using the second
2-(-6)=8 checks.
(4,-10) are the solutions.
Answer by MathTherapy(10552) (Show Source): You can put this solution on YOUR website!
Solve the system of equations by the substitution method. (If there is no solution, enter NO SOLUTION.)
{0.25x + 0.4y = −3
{0.5x − 0.6y = 8
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