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mezya [45]
3 years ago
8

Solve the system with the addition method: Write your answer in the form

Mathematics
1 answer:
Sidana [21]3 years ago
3 0

since there is already 2 7x's we can multiply a positive 1 so we can eliminate the 7x's

+1 (-7x-4y=-7) = 7x+4y=7

7x+4y=7

-7x-2y=-4

2y=3

divide 2 on both sides to isolate y

y=2/3

now to find x you will have to plug in 2/3 to one of the original equations

-7x-2(2/3)=-4

-7x-1.33=-4

add 1.33 to both sides

-7x=2.67

divide -7 on both sides

x=0.38

hope this helped hon:)

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The rate of change is also called the slope
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x1 = -3
x2 = 6
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3 years ago
1 substitute p=5, q=7, r = -2
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1.

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3 0
3 years ago
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astra-53 [7]
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6 0
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ValentinkaMS [17]

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Step-by-step explanation:

8 0
2 years ago
Please explain step by step
Alja [10]

Let's find the value of x

Since the sum of internal angles of a triangle is 180°

therefore,

\hookrightarrow \: (2x - 2) \degree + (x + 5) \degree + 90 \degree = 180 \degree

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4 0
3 years ago
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