Solve the equation for y: -2y=-x+7

1 answer:

7 0

To solve for a variable means to ISOLATE the variable on one side of the equation. To do so, divide both sides by the coefficient of y.

Look:

2y/2 = (-x+7)/2

Answer: y = (-x + 7)/2

The answer can also be written as

y = -(x/2) + (7/2)

Both answers mean the same thing.

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bagirrra123 [75]

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Anne and Andy sell pizza by the slice. Anne made 7 pizzas, and sold 5/12 of each pizza. Andy made 5 pizzas, and sild 7/12 of eac

gulaghasi [49]

Answer:

No, they both sold equal amount of pizza

Step-by-step explanation:

In this question, we are concerned with knowing who sold more pizza between Anne and Andy.

Let’s have what each individual sold then make a comparison.

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Andy made 5 and sold 7/12 of each. Total sold by Andy would be 5 * 7/12 = 35/12

Looking at the answers we can see that they are equal to same 35/12. This means they both sold equal amount of pizza

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xz_007 [3.2K]

Answer:

x = 20

Step-by-step explanation:

If two lines are cut by a transversal and the corresponding angles are congruent, the lines are parallel.

$\rm \longrightarrow \angle 2 = \angle 5 \\ \\ \rm \longrightarrow 3x - 20 = x + 20 \\ \\ \rm Add \ 20 \ both \ sides: \\ \rm \longrightarrow 3x - 20 + 20 = x + 20 + 20 \\ \\ \rm \longrightarrow 3x = x + 40 \\ \\ \rm Substrate \ x \ from \ both \ sides: \\ \rm \longrightarrow 3x - x = x - x + 40 \\ \\ \rm \longrightarrow 2x = 40 \\ \\ \rm Divide \ both \ sides \ by \ 2: \\ \rm \longrightarrow \frac{ \cancel{2}x }{ \cancel{2}} = \dfrac{40}{2} \\ \\ \rm \longrightarrow x = 20$