Answer:
8
Step-by-step explanation:
I do not know the details of the work but if it's a simple "Solve for x" question, you're not quite right.
1/2x+3=7
1/2x= 4
x= 8
Answer: x = 5
y = 2
z = 2
Step-by-step explanation:
-3x+4y+2z=-3 - ,- - - - - - 1
2x-4y-z=0 - - - - - - - - - - 2
y=3x-13 - - - - - - - - - - 3
We will use the method of substitution.
Substituting y = 3x -13 into equation 1 and equation 2, it becomes
-3x+4(3x-13)+2z=-3
-3x + 12x - 52 + 2z=-3+52
9x+2z = 49 - - - - - - -4
2x - 4(3x-13)-z= 0
2x - 12x + 52 - z = 0
-10x- z = -52 - - - - - - --5
Using elimination method to solve equation 4 and equation 5
Multiply equation 5 by 2 and equation 4 by 1
-20x - 2z = -104
9x+2z = 49
Adding both equations,
-11x = -55
x = -55/-11
x = 5
Substituting x = 5 into equation 3
y = 3x - 13
y = 3×5 -13 = 15-13
y = 2
Substituting x = 5 and y = 2 into equation 1,
-3x+4y+2z=-3
-3×5 + 4×2 +2z = -3
-15+8+2z = -3
-7+2z = -3
2z = -3+7
2z = 4
z = 4/2 = 2
(A+1) (a^4+2) that’s my answer
Answer:
<em>2x + y = -5
</em>
<em>
</em>
<em>-2x = y
</em>
<em>
</em>
<em>2x = 4 -y</em>
Step-by-step explanation:
Use form y = mx + b, and from the lines you will find the following answers equations that have no solution.
Hey!
First, we need to know how many millimeters are in a centimeter.
<em>10 mm = 1 cm</em>
Okay, now we can write an equation.
<em>360 mm ÷ 10</em>
To solve this equation, we simply divide.
<em>360 mm ÷ 10 = 36 cm</em>
<em>So, if </em><span><em>Anoki bought 360 millimeters of fabric, that means he has </em> 36.0 centimeters <em>of fabric.</em>
Hope this helps!
- Lindsey Frazier ♥</span>
