Answer:
x=-3
Step-by-step explanation:
2
−
1
⋅
1
2
=
6
2-1 \cdot \frac{12}{x}=6
2−1⋅x12=6
Solve
1
Combine multiplied terms into a single fraction
2
−
1
⋅
1
2
=
6
2
+
−
1
⋅
1
2
=
6
2
Multiply the numbers
2
+
−
1
⋅
1
2
=
6
2
+
−
1
2
=
6
3
Subtract
2
2
2
from both sides of the equation
2
+
−
1
2
=
6
2
+
−
1
2
−
2
=
6
−
2
4
Simplify
Subtract the numbers
Subtract the numbers
−
1
2
=
4
5
Multiply all terms by the same value to eliminate fraction denominators
−
1
2
=
4
⋅
−
1
2
=
⋅
4
6
Simplify
Cancel multiplied terms that are in the denominator
Re-order terms so constants are on the left
−
1
2
=
⋅
4
-12=x \cdot 4
−12=x⋅4
−
1
2
=
4
-12=4x
−12=4x
−
1
2
=
4
7
Divide both sides of the equation by the same term
−
1
2
=
4
−
1
2
4
=
4
4
8
Simplify
Divide the numbers
Cancel terms that are in both the numerator and denominator
Move the variable to the left
=
−
3
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Solution
=
−
3
Answer:
Step-by-step explanation:
The system of equations is expressed as
-x -3y =18 - - - - - - - - - - - - - -1
x + 2y = -14 - - - - - - - - - - - - - -2
We would eliminate x by adding equation 1 to equation 2. It becomes
- y = 4
Dividing the left hand side of the equation and the right hand side of the equation by - 1, it becomes
- y/ - 1 = 4/ - 1
y = - 4
Substituting y = - 4 into equation 1, it becomes
-x -3 × - 4 =18
- x + 12 = 18
Subtracting 12 from the left hand side of the equation and the right hand side of the equation, it becomes
- x + 12 - 12 = 18 - 12
- x = 6
x = - 6
2y^2 - y - 1 = 0
(2y + 1) (y - 1) = 0
2y + 1 = 0 or y - 1 = 0
y = -1/2 or y = 1
To determine if these line segments are congruent you can find the distances between the x values and the y values for each set of points.
(-1, 10) and (-5, 2). 4 on x axis and 8 on the y axis.
(9, -7) and (1, -3). 8 on the x axis and 4 on the y-axis.
This means they are congruent. Each triangle would have the same two side lengths making the hypotenuse the same.
Answer:
you have the correctly selected answer
Step-by-step explanation:
because if you are to reduce -2 and change it or should i say add it two 5 its 1/3 or one third
