Answer:
please try asking in english
Step-by-step explanation:
try at least
(1) 2x + 3y = 31 y
(2) 2x + 3y = x + 7
(3) 31y = x + 7
(3) x = 31y - 7
(2) 2(31y - 7) + 3y = 31y - 7 + 7 ; 62y - 14 + 3y = 31y ; 34y = 14 ; y = 14/34 ; y = 7/17
(3) x = 31y - 7 ; x = 31*(7/17) - 7 ; x = (217 - 119)/17 = 98/17
x = 98/17 ≈ 5.76
y = 7/17 ≈ 0.41
The question is an illustration of solving equations using estimates.
The student's strategy makes sense because he uses estimation to solve the given equation
The correct sequence of equation is as follows:
We have:
Add 0 to the equation
Express 0 as 1 - 1
Add another 0
Express 0 as 3 - 3
Rewrite as:
Solve
Read more about estimation and equations at:
brainly.com/question/18454732
Answer:
x axis, then translate x+6, y+1
Slope between (x1,y1) and (x2,y2) is (y2-y1)/(x2-x1)
so
slope beteen (7,-11) and (-5,-8) is
(-8-(-11))/(-5-7)=(-8+11)/(-12)=3/-12=-1/4
slope=-1/4
