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satela [25.4K]
3 years ago
12

A system of equations is graphed on the coordinate plane.

Mathematics
1 answer:
LuckyWell [14K]3 years ago
7 0

Answer:

Step-by-step explanation:

it is correct.

solution is intersection of two lines.

it is x=-0.5 and y=1.5

or (0.5,1.5)

provided each square represents 1 unit.

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What is the solution to the system of equations? 3x + 10y = -47 5x- 7y = 40<br>Please and thank u
anastassius [24]

Answer:

x=1, y=-5

Step-by-step explanation:

Given equations are:

3x+10y=-47\ Eqn\ 1\\and\\5x-7y=40\ Eqn\ 2

In order to solve the equation

Multiplying Eqn 1 by 5 and eqn 2 by 3 and subtracting them

So,

Eqn 1 becomes

15x+50y=-235

Eqn 2 becomes

15x-21y=120

Subtracting 2 from a

15x+50y - (15x-21y) = -235-120

15x+50y-15x + 21y = -355

71y = -355

y = -355/71

y =-5

Putting y= -5 in eqn 1

3x+10(-5) = -47

3x -50 = -47

3x = -47+50

3x = 3

x = 3/3

x = 1

Hence the solution is:

x=1, y=-5

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3 years ago
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Please help with explanation and show work :)
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Answer:

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Step-by-step explanation:

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