-x+6y-4z=17 / -4x-y-4z=7 / -x+y+5z=-15 solve using substitution

1.x = 17 − 6 y + 4 z Is correct

2. Is correct

3.x = 15 + y + 5z Is correct

Step-by-step explanation:

1. Move all terms not containing  x to the right side of the equation. x = 17 − 6 y + 4 z

2.Isolate the variable by dividing each side by factors that don't contain the variable.

3.Isolate the variable by dividing each side by factors that don't contain the variable. x = 15 + y + 5z

(Hope this helps can I pls have brainlist (crown)☺️)

use the power rule  

( a b ) n = a n b n

to distribute the exponent.

apply the product rule to  

3 x 2 y 3 . ( 3 x 2 ) 2 ( y 3 ) 2

apply the product rule to  

3 x 2 . 3 2 ( x 2 ) 2 ( y 3 ) 2

raise  

3

to the power of  

2 . 9 ( x 2 ) 2 ( y 3 ) 2 multiply the exponents in   ( x 2 ) 2

.

apply the power rule and multiply exponents,  

( a m ) n = a m n . 9 x 2 ⋅ 2 ( y 3 ) 2

multiply  

2   by   2 . 9 x 4 ( y 3 ) 2

multiply the exponents in  

( y 3 ) 2 .

apply the power rule and multiply exponents,  

( a m ) n = a m n . 9 x 4 y 3

⋅

2

multiply  

3   by   2 . 9 x 4 y 6

step-by-step explanation:

mxb67

step-by-step explanation: