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Vadim26 [7]
3 years ago
15

I need to solve for 3x+7=-x-1

Mathematics
1 answer:
Andrew [12]3 years ago
3 0

3x+7=-x-1

move -x to the other side

sign changes from -x to +x

3x+x+7=-x+x-1

3x+x+7=-1

4x+7=-1

move 7 to the other side

sign changes from +7 to -7

4x+7-7=-1-7

4x=-8

Divide by 4 for both sides

4x/4=-8/4

Answer: x=-2

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Ierofanga [76]

15-3=12

12+h


Use this equation to help you solve.

8 0
3 years ago
The circle below has a radius of 3 units . Find the area of the circle. Use 3.14 for π.
const2013 [10]

Answer:

28.26 units

Step-by-step explanation:

We know the radius of the circle is 3 units, so we'll end up plugging that into the formula.

A = π(3^2) or A = π * 3 * 3

When you substitute pi for 3.14, you'll end up getting 28.26 units.

Hope this helped! :)

6 0
2 years ago
Point Y is in the interior of ∠XWZ. Given that WX→ and WZ→ are are opposite rays, and m∠XWY=4(m∠YWZ) is m∠YWZ?.
EleoNora [17]

Answer:

m∠YWZ=36°

Step-by-step explanation:

Opposite rays are two rays that both start from a common point and go off in exactly opposite directions. Because of this the two rays (WX and WZ) form a single straight line through the common endpoint W.

If rays WX and WZ are opposite, then angle XWZ is straight angle. A straight angle always has the measure of 180°.

Point Y is in the interior of ∠XWZ, then angles XWY and EWZ are supplementary angles (together form straight angle XWZ). Supplementary angles always add up to 180°, then

m∠XWY+m∠YWZ=180°

You are given that

m∠XWY=4(m∠YWZ).

Substitute it into the previous equality:

4(m∠YWZ)+m\angle YWZ=180°

5(m∠YWZ)=180°

m∠YWZ=36°

5 0
3 years ago
Create an exponential function that starts at 650 and increases by 12% us the form f(x) = p (1=r)^x
ololo11 [35]
F(x)= 650(1+.12)^x

f(x) = 650(1.12)^x
4 0
3 years ago
How many solutions does the equation have?
Alex17521 [72]

Answer:

x = 1/2

Step-by-step explanation:

2x + 3 = 4x + 2

-2x        -2x

3 = 2x + 2

-2          -2

1 = 2x

Divide both sides by 2x

x = 1/2

4 0
3 years ago
Read 2 more answers
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