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3 years ago

Please help me solve each system by elimination?

1 answer:

7 0

1)
-4x-8y=16
8x+16y=-16

Multiply fhe first equation by 2:

=> -8x - 16y = 32

Add this new equation with previous second equation

0 = 16, which means that the system has no solutions.

2)

4x-10y=-14
3x+8y=-26

Multiply the first equation by 3 and the second by - 4:

12x - 30y = - 42
-12x - 32y = 104

Add the two new equations
-------------------------
0 - 62y = 62

=> y = -1

replacing in the first equation:

=> 4x-10(-1) = -14

=> 4x + 10 = - 14

=> 4x = - 14 - 10

=> 4x = - 24

=> x = - 24 / 4

=> x = - 6

Answer: x = - 6 and y = - 1

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3 years ago

Read 2 more answers

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3 years ago

alicias garden is 50 square feet. inside of her garden she plants a section of tomatoes that is 3 feet by 4 feet how much more s

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Step-by-step explanation:

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3 years ago

PLS HELP Find the value of x. A. 4 B. 2 C. 7 D. 14

mars1129 [50]

Answer:

ANSWER IS B

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3 years ago

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Can someone please help me answer this

Alexus [3.1K]

Answer:

1) a = 1.6 2) f = 0.53

Step-by-step explanation:

1) 6a = 10 2) 48 = 90f

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sorry i could only do the first two, i think those are right

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3 years ago