Solve y=3x+4 and y=-2x-6 using substitution method

1 answer:

Ivan3 years ago

7 0

3x + 4 = -2x - 6
5x = -6 - 4
x = -2

y = (3*-2) + 4
y = -6 + 4
y = -2

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3241004551 [841]

To arrange numbers from least to greatest:

First write them down in decimal form. Now it will be easy to determine which value is greater than the other.

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4 0

3 years ago

irinina [24]

Answer:

y = -6

Step-by-step explanation:

To simplify this equation as much as possible, we have to get the variable y by itself.

To do this, we would do the inverse operation of subtraction and add 7 to the left and right side of the equation.

-7 + 7 + 5y = -37 + 7

The 7s cancel out on the left side because -7+7 = 0 and so we are left with,

5y = -30

Then we would do the inverse operation of multiplication and divide by 5 on the left and right side of the equation.

5y/5 = -30/5

y = -6

8 0

3 years ago

andreyandreev [35.5K]

Answer:

translation followed by a rotation

Step-by-step explanation:

7 0

3 years ago

algol13

The quantity of water left in the tank as described in the task content is; 111 l 220ml.

<h3>What is the amount of water left in the tank?</h3>

The tank described in the task content initially contains 200 liters, in which case, 1 liter corresponds to 1000ml.

Hence, when 88l 580ml was used, the remaining quantity of water is; 200l - (88l 580ml) = 111 l 420ml.

And finally, since 200 ml leaked, the quantity of water left is; 111l 220ml.