4 years ago

-7y+11y+9=-3 what does y equal

Mathematics

1 answer:

Lilit [14]4 years ago

3 0

Answer:

y=-3

Step-by-step explanation:

-7y+11y+9=-3

1) Combine alike terms:

4y+9=-3

2) subtract a 9 on both sides:

4y=-12

3) divide both sides by 4:

y=-3

You might be interested in

Which set of numbers is the most reasonable to describe the number of desks in a classroom?

VladimirAG [237]

Whole numbers are reasonable to describe the number of desk.

5 0

4 years ago

Read 2 more answers

If you answer these question I will give you brainiest plus 20 points

Ivahew [28]

What is the question

7 0

3 years ago

my hw write find an equation of the line passing through (-2,3) and (4,-5) I have to write the equation in slope-intercept form

Viefleur [7K]

Answer:

The line passing through the given points is:

$y=-\frac{4}{3}x+\frac{1}{3}$

in its slope-intercept form

Step-by-step explanation:

Start by finding the slope of the segment that joins the two given points using the slope formula:

$slope=\frac{y_2-y_1}{x_2-x_1}$

which for our case renders:

$slope=\frac{3-(-5)}{-2-4}=\frac{8}{-6} =-\frac{4}{3}$

Now we can find the y-intercept by using any one of the given points in the general slope-intercept form of a line with this slope:

$y=-\frac{4}{3} x+b\\3=-\frac{4}{3} (-2)+b\\3=\frac{8}{3}+b\\b=3-\frac{8}{3} \\b=\frac{9-8}{3} \\b=\frac{1}{3}$

Therefore, the equation of the line becomes:

$y=-\frac{4}{3}x+\frac{1}{3}$

3 0

3 years ago

Help! please with my work

n200080 [17]

Answer:

122.5 cm²

Step-by-step explanation:

Area = 1/2 × 35 × 7 = 122.5 cm²

3 0

3 years ago

Read 2 more answers

Basile [38]

Answer:

Step-by-step explanation:

by substitution what is before x² is considered as a

what is before x is b and the number alone(without x) with it's sign included is c

8 0

3 years ago