Solve 7x - 2y = -314x + y = 14 (1 point)In the below system, solve for y in the first equation. x - 3y = -62x - 7y = 10 (1 point)What is the value of y in the solution to the following system of equations? 5x - 3y = -112x - 6y = -14 (1 point)Use the substitution method to solve the following system of equations. 3x + 5y = 3x + 2y = 0 (1 point)
Question
Answer:
1. x= -1/7 y=24/7 (use socratic app, because this is too much work)2. y = 2
3. y = 1/3 (use socratic app, because this is too much work)
4. x=2, y= -1
2) x-3y= -6
2x-7y=10
x-3y=-6
+3y +3y
2(-6+3y)-7y=10
-12+6y-7y=10
-12-y=10
+12 +12
-y= -22
y= -22
4) 5x-3y= -11
2x-6y= -14
3x+5y=3
x-2y=0
+2y +2y
x=2y (not the answer yet)
3(-2y)+5y=3
-6y+5y=3
-1y=3
-1y/-1 = 3/-1
y= -3
x= 2(-3) = -6
solved
general
6 months ago
9651