3 years ago

Please help this is confusing:(

1 answer:

topjm [15]3 years ago

6 0

The answer would be 17

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Annette [7]

The solution is x=1 and y=-2

Further explanation:

Given equations are:

$\frac{7}{2}x-\frac{1}{2}y=\frac{9}{2}\\3x-y=5$

Multiplying equation no. 1 with 2 will give us:

$7x-y=9$ Eqn 3

From equation no 2:

$3x-y=5\\-y=5-3x\\y=3x-5$

Putting the value of y in eqn 3

$7x-(3x-5)=9\\7x-3x+5=9\\4x=9-5\\4x=4\\\frac{4x}{4}=\frac{4}{4}\\x=1\\Putting\ x=1\ in\ equation\ 2\\3(1)-y=5\\3-y=5\\-y=5-3\\-y=2\\y=-2\\$

The solution is x=1 and y=-2

Keywords: Linear equations, Solution set

Learn more about linear equations at:

#LearnwithBrainly

8 0

3 years ago

Serjik [45]

Answer:

123re Counterclockwise rotated

3 0

2 years ago

lisov135 [29]

plug in -2 for x

7*-2 -10 = -24

7 0

3 years ago

devlian [24]

X=-5 and y=1

you would replace the letter x or y with zero to find the intercept.

5 0

3 years ago

andrey2020 [161]

Ummm I need more infooooo...

6 0

3 years ago