Answer:
n = 6
Step-by-step explanation:
4(3-6n)-4n=-156 (by PEDMAS, solve parentheses first)
(4)(3) - (4)(6n) - 4n = - 156
12 - 24n - 4n = -156
12 - 28n = -156 (subtract 12 from both sides)
-28n = -156 - 12
-28n = -168 (divide both sides by -28)
n = -168 / (-28)
n = 6
Answer:
Step-by-step explanation:
Exponent Rules: 
Exponent Rules: 
Step 1: Write expression
![\frac{\sqrt[4]{x^3} }{x^{\frac{1}{12} }}](https://tex.z-dn.net/?f=%5Cfrac%7B%5Csqrt%5B4%5D%7Bx%5E3%7D%20%7D%7Bx%5E%7B%5Cfrac%7B1%7D%7B12%7D%20%7D%7D)
Step 2: Rewrite radical
Step 3: Multiply powers (numerator)
Step 4: Subtract powers
Answer:
1)x=-6,y=1 2)a=0,b=-8 3)j=8,k=1 4)m=3,n=-6
Step-by-step explanation:
1)x-4y=-10,2x+y=-11
x-4y=-10
x=4y-10
2\left(4y-10\right)+y=-11
8y-20+y=-11
9y-20=-11
9y=9
y=1
x=4-10
x=-6
x=-6,y=1
2)a-3b=24,a+2b=-16
a-3b=24
a=3b+24
3b+24+2b=-16
5b+24=-16
5b=-40
b=-8
a=3\left(-8\right)+24
a=-24+24
a=0
a=0,b=-8
3)k-j=-7
4j-5k=27,-j+k=-7
4j-5k=27
4j=5k+27
j=\frac{1}{4}\left(5k+27\right)
j=\frac{5}{4}k+\frac{27}{4}
-\left(\frac{5}{4}k+\frac{27}{4}\right)+k=-7
-\frac{1}{4}k-\frac{27}{4}=-7
-\frac{1}{4}k=-\frac{1}{4}
k=1
j=\frac{5+27}{4}
j=8
j=8,k=1
4)m+n=-3,m-4n=27
m+n=-3
m=-n-3
-n-3-4n=27
-5n=30
n=-6
m=-\left(-6\right)-3
m=6-3
m=3
m=3,n=-6
Answer:
the sustitucion metod is easy x=5 y=3
Step-by-step explanation:
x-3y=-4 (-2)
2x-y=7 (1)
-2x+6y=8
2x-y=7
5y=15
y=3
2x-3=7
2x=10
x=5
Blue = 6x3 = 18
Purple = 4 + (5 x 2) = 14
Orange = 2(2 x 3) = 12
Bottom = 6 x 3 = 18
Back = 4 x 3 = 12
Opposite purple = purple = 14
18 + 14 + 12 + 18 + 12 + 14 = 88
Answer = 88 cm squared
