The answer is B. If you substitute the values of x, y and z in you get 1 * -10 which just is -10. -10 / 2 = -5.
Answer:
140
Step-by-step explanation:
=(-4+55+18)+(18+25+28)
=69+71
=140
Answer:
The answer is C.
Step-by-step explanation:
Each day (x) he loses 5 dollars from his total of 190. And C shows that because 190 - 5 x. 190 is his total, 5 is dollars lost a day, and x is days
Answer:

To find - sum of the given two terms.

<h2>—————————————————</h2>

<h3>
Here ,</h3>
we basically added the like terms together..
like, the terms ( 3x and -4x ) will be added together.. and the terms ( 4 and 5 ) will be added together...
since there's none other term having "x²" as the coefficient.. so 2x² will be left as it is!
hope helpful~
<h3>
~ExhaustedZombie</h3>
C is 0, since only multiplied by 0 will get 0, and the question defined that a and b not 0, so only c is 0