Answer:
x = 5
Step-by-step explanation:
You know what "y" equals, so you just need to insert the value into the equation, then solve for "x".
-13 = -3x + 2
-13 - 2 = -3x
-15 = -3x
5 = x
x = 5
(-6)-(+8)-(-12)
-6-8+12
-14+12
-2
X^2+8x+x+8 simplifies to x^2+9x+8
Scale factor:
10/4= 2.5
X = 5 x 2.5 = 12.5
Y= 8/ 2.5 = 3.2
Z= 15/2.5 = 5