first, make an equation:

then, add twelve to both sides to remove it from the right:

then just divide by (-3) to get the value of x:

A triangle has 3 sides....each side measuring 0.75 inches...and the perimeter is the total of all 3 sides.
0.75(3) = 2.25 inches
I think it’s g^-1(x)= -2x+4
The “^” means exponent to -1 is the exponent of g
Hope I’m right !!
Answer:
51.8
Step-by-step explanation:
Multiply 15 by z and -51 which would equal (15z-765).
Add 765 to 12 and that equals 777
Divide 777 by 15 which would equal 51.8