Answer:
Step-by-step explanation:
X^2-10x-8=0
Solve simultaneously
<h3>Given Equation:-</h3>

<h3>Step by step expansion:</h3>



























Answer: No
Step-by-step explanation:
It would not make sense to describe the total weight of Mark's dinner in tons. A ton is equivalent to 2000 pounds, which is 600 pounds heavier than what was considered the world's heaviest man. Depending on the context of the problem, I doubt Mark is eating such large amounts of food.
Step 1; multiple equation 2 by -2: 14x+8y=-18
step2: subtract this new equation from equation 1 to eliminate x:
2y-8y=18-(-18)
-6y=36
y=-6
step 3: substitute y=6 in equation 2: -7x-4*(-6)=9, -7x=-15, x=15/7