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Solve each system BY LINEAR COMBINATION/Elimination

(refer to the examples provided in today's notes).

#1) x + 10y = -7

-x +6y = -9

#2) -9x + 3y = -3

-x - 6y = -13

Step-by-step explanation:

Here is the work and explanation:

b is 38 degrees.

a is 52 degrees.

this is because if b is 38 and a is 14 degrees more than b than 38+14=52 and 52+38=90 degrees. hope this .

question: how many people can she serve?

answer: she can serve 16.66666667 people. so she can only give 16 people a complete serving.

question: does she have enough ice cream for her guests?

answer: no. explanation: she only has enough for 16 people to have a full serving. however, she can give a 17th person a partial serving.