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sdas [7]
4 years ago
12

Solve the linear equations -2x+5y=39 2x-3y=-25

Mathematics
1 answer:
nata0808 [166]4 years ago
4 0

Answer:

Step-by-step explanation:

hello :

-2x+5y=39 ....(*)

2x-3y=-25....(**)

add(*) and (**) : 2y =64    so : y =64/2 =  32

put this value in (*) : -2x+5(32) = 39 ....continu

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---
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If you can save it and solve it there on the paper
frez [133]

Answer:

2a). Y= 1. 3= x

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Y= x²+3x-18

For -5

First difference

10

Second difference

-8

For -4

First difference

4

Second difference

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For -3

First difference

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For -2

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Second difference

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For -1

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Second difference

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For 0

First difference

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Second difference

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The relation ia a quadratic relation because of the highest Power of x to be 2

Step-by-step explanation:

For

Y=- x+4. Y= 1

Y=x-2. 1= x-2

2y =2. 1+2= x

Y= 1. 3= x

For

Y= x+3. 1= x

Y= 3x+1. Y= 3+1

0= 2x-2. Y= 4

2= 2x

1= x

Y= x²+3x-18

For -5

First difference

25-15= 10

Second difference

10-18= -8

For -4

First difference

16-12= 4

Second difference

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For -3

First difference

9-9= 0

Second difference

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For -2

First difference

4-6= -2

Second difference

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For -1

First difference

1-3 = -2

Second difference

-2-18 = -20

For 0

First difference

0+0 = 0

Second difference

0 -18= -18

The relation ia a quadratic relation because of the highest Power of x to be 2

4 0
3 years ago
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Divide all numbers by three to get:

9 : 11 : 2.

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3 years ago
Read 2 more answers
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