Which facts could be applied to simplify this expression? Select three options. (-5x-3y)-(-x-3z) To subtract like terms, subtract the coefficients, not the variables. O Like terms are terms that contain the same variable, raised to the same power. The simplified expression is -6x-3y + 3z The simplified expression is -4x-3y+3Z O-(-x) is equivalent to -x, so -5x-X=-6x.​

a

step-by-step explanation:

answer: haha (: i’ll go see what it is

step-by-step explanation:

d 600 because 15*10*2=300

300+300=600

step-by-step explanation:

let x and 400 - x be the two numbers.  

==> 0.80x + 0.85(400 - x) = 400 - 68 from the statement of the problem.  

< ==> 0.80x + 0.85(400 - x) = 400 - 68  

==> 340 - 0.05x = 332  

< ==> -0.05x = -8 ==> x = 160, the first number ==> 400 - x = 240, the second number.