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2 years ago

15

3x-y=7 2x+3y=12 how do you solve?

1 answer:

Dvinal [7]2 years ago

6 0

Step-by-step explanation:

2x+3(-7+3x)=12

x=3

y=-7+3x3

y=2

(x,y)=(3,2)

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2 years ago

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2 years ago

Solve the variable x. 12yx = 5z

romanna [79]

Answer:

$\boxed{\bold{x \ = \ \frac{5z}{12y} }}$

Explanation:

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2 years ago

Solve each linear equation for x. (A) –12x + 9 = –15x x = (B) 4.5x + 11.5 = 8.5x + 3.5 x = (C) 23x – 9 = 13x x =

mojhsa [17]

Answer:

A. x = -3

B. x = 2

C. x = 9/10

Step-by-step explanation:

(A) –12x + 9 = –15x

Collect like terms

9 = -15x + 12x

9 = -3x

x = 9 / -3

x = -3

(B) 4.5x + 11.5 = 8.5x + 3.5

4.5x - 8.5x = 3.5 - 11.5

-4x = -8

x = -8 / -4

x = 2

(C) 23x – 9 = 13x

-9 = 13x - 23x

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x = -9 / -10

x = 9/10

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2 years ago

...........................

kramer

Answer:

i dont see a question .

Step-by-step explanation:

3 0

2 years ago

Read 2 more answers