SOLUTION: How do i solve 3x-6y=30 and how do i solve y=-6x+34 using the expressions involving variables, substitution?
Algebra ->
Expressions-with-variables
-> SOLUTION: How do i solve 3x-6y=30 and how do i solve y=-6x+34 using the expressions involving variables, substitution?
Log On
Question 178606This question is from textbook algebra 1
: How do i solve 3x-6y=30 and how do i solve y=-6x+34 using the expressions involving variables, substitution? This question is from textbook algebra 1
You can put this solution on YOUR website!
How do i solve
3x-6y=30
y=-6x+34
-----------
Modify to get:
x - 2y = 10
y = -6x + 34
-----------
Substitute to solve for "y":
y = -6(2y+10) + 34
y = -12y - 60 + 34
13y = -26
y = -2
-------------
Substitute to solve for "x":
x -2*-2 = 10
x = 6
============================
Ans: x = 6 and y = =2
=========================
Cheers,
Stan H.