SOLUTION: Solve the following 2 x 2 systems using substitutions
y= 3x - 3
3x + 5y =57
Algebra.Com
Question 72330: Solve the following 2 x 2 systems using substitutions
y= 3x - 3
3x + 5y =57
Answer by elima(1433) (Show Source): You can put this solution on YOUR website!
y= 3x - 3
3x + 5y =57
Replace the y in the second equation with 3x-3;
3x + 5(3x-3)=57
distribute 5;
3x + 15x - 15 =57
add like terms and add 15 to both sides;
18x=57+15
18x = 72
x = 4
Now replace x with 4;
y=3(4)-3
y = 12-3
y=9
:)
RELATED QUESTIONS
Solve the following 2 x 2 systems using substitutions
3x - y = 5
6x + 5y... (answered by elima)
Solve the folling 2 x 2 systems using substitutions
y= 3x + 12
y= -x... (answered by elima)
Solve the following 2 x 2 systems using substitutions
2x - 5y= 21
7x + 3y =... (answered by elima)
Solve the following 2 x 2 systems using substitutions
y= 2x +2
y= 1/2x +... (answered by elima)
Solve the following 2 x 2 systems using substitutions
2x + 7y =9
9x + 4y... (answered by checkley75)
Solve the folling 2 x 2 systems using substitutions
y= 1/2x + 10
y= 5x... (answered by checkley75)
solve the following systems of equations x + 5y=2 3x +... (answered by swincher4391)
solve the following systems using the elimination method. Write your complete solutions.
(answered by math_tutor2020,josgarithmetic)
solve the following systems using the elimination method. Write your complete solutions.
(answered by josgarithmetic)