3 years ago

Solve for a.5a−5−15=3a+6+4

Mathematics

1 answer:

taurus [48]3 years ago

5 0

Answer:

Step-by-step explanation:

5a - 5 - 15 = 3a + 6 + 4 combine like terms

5a + (-5 - 15) = 3a + (6 + 4)

5a - 20 = 3a + 10 add 20 to both sides

5a = 3a + 30 subtract 3a from both sides

2a = 30 divide both sides by 2

a = 15

You might be interested in

Are 2(x-5) and 2x-5 equivalent

Mandarinka [93]

No, because with the parentheses, you distribute the 2 to both the x and the 5, making that equation 2x-10

7 0

2 years ago

Read 2 more answers

Hii can someone help with this pls :)

BlackZzzverrR [31]

Answer:

$R(x,y) = (0.8,-1.2)$

Step-by-step explanation:

The coordinates of QS are:

$Q(x_1,y_1) = (-2,-6)$

$S(x_2,y_2) = (5,6)$

The ratio is represented as:

$R_{m:n} = 2:3$

Required

Find the coordinates of R

The coordinates of R is calculated by:

$R(x,y) = (\frac{mx_2 + nx_1}{m+n},\frac{my_2 + ny_1}{m+n})$

Substitute values for m, n, x's and y's

$R(x,y) = (\frac{2 * 5 + 3 * -2}{2+3},\frac{2*6 + 3*-6}{2+3})$

$R(x,y) = (\frac{4}{5},\frac{-6}{5})$

$R(x,y) = (0.8,-1.2)$

None of the options is correct

6 0

2 years ago

Lcm of 2 and 3 very very very urgent

Licemer1 [7]

Answer: 6

Step-by-step explanation: 2x3=6 it’s the lowest multiple

5 0

1 year ago

Read 2 more answers

In the diagram, what is the value of x? A. 144° B. 28° C. 5° D. 36°

In-s [12.5K]

X+4x = 180
5x = 180
x =180/5
x = 36

answer
D. 36

4 0

2 years ago

Mitchell drew 56 pictures. Rafi drew p fewer pictures than Mitchell. Write an expression that shows how many pictures Rafi drew.

Angelina_Jolie [31]

This would be 56 - p because 'fewer' indicates subtraction.

8 0

2 years ago