2x + 5 greater then or equal to -1 What is x

Mathematics

2 answers:

Evgesh-ka [11]2 years ago

7 0

Answer:

x ≥ -3

Step-by-step explanation:

2x + 5 ≥ -1

-5 -5

2x. ≥-6

divide both side by 2

x ≥ -3

Zanzabum2 years ago

5 0

So According to this equation
2x + 5 = -1
=> 2x = -1-5 (As when 5 goes to the right side so it sign changes)
=> 2x = -6
=> x = -6/2 (as when 2 goes to the right side it gets divided)
*Ans = x=-3*
Hope it helps you!

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find the equation of a line that is parallel to the straight line 2x-y=-3 and crosses the x-axis at x=-5

Alecsey [184]

Answer:

y=2x+10

Step-by-step explanation:

In line equations its helpful to write your line in the form y = ax + b. This helps because a is always the gadient of the line and b is always the y intercept.

In this case it is y=2x+3

All parallel lines have the same gradient. The gradient of this line = 2.

If the line crosses the x axis at x=-5, then when x =-5 y = 0.

If you put all this in the form y =ax + b you get 0 = 2(-5) +b

So all you need to do to find b is rearrange. b = 10.

Therefore your line has gradient 2 and y intercept 10.

y = 2x + 10

7 0

2 years ago

I WILL GIVE 15 POINTS!!!!

Archy [21]

Idk I’m not that very smart