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andrey2020 [161]
4 years ago
6

4x+12=-7y -y+12=4x PLS HELP!!!! Addition/ Elimination method

Mathematics
1 answer:
hoa [83]4 years ago
3 0
4×+7y=-12 __ -4x-y=-12 ________ 0x+6y=-24 , so you eleminated by it self 6y/6=-24/6 , you get : y=-4 and then you plug in 4x+7(-4)=-12 , that's your answer 4x-28 =-12 , you divided in both side 4x=-12+28 , 4x=16 , and then x=16/4 =4 , so x=4
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Answer:

the third side is 12.6 centimeters

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A.
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3 years ago
F(x)=(-3x+2) and g(x)=(2x^2-5x-1)
pashok25 [27]

Answer: -6x² + 15x + 5

Step-by-step explanation:

To solve this problem, you only need to substitute g(x)'s equation as the value of the x in f(x), then simplify.

Step 1: f(x) = -3(2x² - 5x - 1) + 2

Step 2: Apply the distributive property

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-6x² + 15x + 3

Step 3: Simplify

f(x) = -6x² + 15x + 3 + 2

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6 0
3 years ago
The sum of two numbers is 65 and their difference is 7. What is the greater of the two numbers?
Pani-rosa [81]

Answer:

The numbers are 35 and 28

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35-28=7

Step-by-step explanation:

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4 0
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Read 2 more answers
how many x-intercepts will the graph of y=(x-2)^2 have?
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1

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Because it y is 0 then we can find the X intercepts. so there will be one X intercept.

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