exam Maths Puzzle Numerical Ability

-2(3y-)=56
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exam Other Question

Find the maximum value od C=2x+y on the region determined by the constraints

{x+y <= 6
{0 <= x <=4
{0 <= y <=4

Possible choices
a. 8
b. 10
c. 12
d. 14 SOLVE THE SYSTEM OF EQUATIONS USING MATRICES AND IDENTIFYTHE SOLUTION

2X-3Y+11Z=10
-2X+2Y-7Z=6