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puteri [66]
3 years ago
12

Solve for a5+14a=9a-5 a=​

Mathematics
1 answer:
poizon [28]3 years ago
4 0

Answer:

-2

Step-by-step explanation:

5+14a=9a-5

+5      +5

10+14a=9a

-9a      -9a

10+5a=0

-5a   -5a

10= -5a

÷5   ÷5

2= -a

*-1  *-1

-2=a

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Can you do this 3(2x-6)-7x+4?
Serjik [45]
3(2x-6)-7x+4
3*2x=6x. 3*-6=-18
-7x+6x=-1x. -18+4=-14
-1x/-1=x. -14/-1=14
X=14
7 0
4 years ago
Y=x+4 y=-2x-2 explain the awnser plz
Sliva [168]

Answer:

x = -2 and y = 2

Step-by-step explanation:

We have the following system of linear equations;

y=x+4

y=-2x-2

To solve the above system, we shall be equating the right hand sides of the two equations since we have y's on the left hand side of both equations;

x + 4 = -2x - 2

add 2x on both sides of the equation;

x + 4 + 2x = -2x - 2 + 2x

3x + 4 = -2

subtract 4 on both sides of the equation;

3x + 4 - 4 = -2 - 4

3x = -6

x = -2

We can use the first equation y=x+4 to determine the value of y;

y = -2 + 4

y = 2

The solution to the system of linear equations is thus;

x = -2 and y = 2

6 0
3 years ago
Is ABC DEF? If so, name which similarity postulate or theorem applies. Pls explain. Thanks!! :)
Inessa05 [86]

Answer: B. Similar - AA

Step-by-step explanation:

The AA or Angle-Angle postulate states that if two corresponding angles are congruent, then the triangles are congruent.

3 0
3 years ago
a quadrilateral has 2 right angles. the measure of the third angle is 73, what is the measure of the forth angle?
hoa [83]

Answer: 107 degrees.

Step-by-step explanation:

A quadrilateral is defined as a 2-dimensional closed shape which has four sides and four vertices.

By definition the interior angles of a quadrilateral add up 360 degrees.

We know that this quadrilateral has 2 right angles (which are angles that measure 90 degrees) and we know that the measure of the third angle is 73 degrees.

Let be "x" the measure of the fourth angle.

Then you can write this expression:

360\°=90\°+90\°+73\°+x

And finally solve for "x":

 360\°=253\°+x

360\°-253\°=x

x=107\°

5 0
3 years ago
I need help on this math problem.
MrMuchimi

Answer:

its A.

Step-by-step explanation:

8 0
4 years ago
Read 2 more answers
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