Solve by elimination
2 answers:
Answer(assuming we solve x):
1st Equation: x= -3/2y-3
2nd Equation: x=-(10y+18)/7
Step by Step Explanation:
1st Equation: since "solve" usually means to find x unless told to solve for another variable, we are going to isolate x in both equations
-24-8x=12y (add 24 to both sides)
+24 +24
-8x=12y+24 (isolate 8 from x)
/-8 /-8
x=-3/2y-3 [simplify fractions (-12/8 turns to -3/2)]
2nd Equation:
1+10/18y=-7/18x
1+10/18y=-7/18x (convert 5/9 to 10/18 to divide)
1+10/18y=-7/18x (isolate -7/18 from x)
/-7/18 /-7/18
(to make this easier on ourselves)
-(10y+18)/7=x
OR
-18/7-10/7y=x
here's the work i did...
1st Equation: x= -3/2y-3
2nd Equation: x=-(10y+18)/7
Step by Step Explanation:
1st Equation: since "solve" usually means to find x unless told to solve for another variable, we are going to isolate x in both equations
-24-8x=12y (add 24 to both sides)
+24 +24
-8x=12y+24 (isolate 8 from x)
/-8 /-8
x=-3/2y-3 [simplify fractions (-12/8 turns to -3/2)]
2nd Equation:
1+10/18y=-7/18x
1+10/18y=-7/18x (convert 5/9 to 10/18 to divide)
1+10/18y=-7/18x (isolate -7/18 from x)
/-7/18 /-7/18
(to make this easier on ourselves)
-(10y+18)/7=x
OR
-18/7-10/7y=x
here's the work i did...
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Step-by-step explanation:
The standard equation of a circle is
Center = (h, k)
#1
Center = (0,2)
h = 0
k = 2
r = 5
#2
Center = (-4,-5)
h = -4
k = -5
r =
#3
Center =(-1,3)
h = -1
k = 3
r = 8
#4
Center: (9,0)
h = 9
k = 0
r =