72- 8x9 - 4 x 4 and 3x3- 2x2x3x3
100-10x10
Answer:
-4
Step-by-step explanation:
subtract 4 from each of the x values
y= x-4
3x-2=0.5-x/4, 3x-2-0.5= -x/3, 3x-2.5=-x/3, -3(3x-2.5)=-3(-x/3), -9x+7.5=x, x+9x=7.5, 10x=7.5, x=7.5/10, x=0.75
The final cost depends on the amount he buys since the 16.99 is the constant. Equation form is 16.99n where n is the amount hence the inconsistent variable