Question

(3a+5° ) +(2a-25°) =180° what is the value of A

Answer 1

Answer:

$\Huge \boxed{a=40}$

Step-by-step explanation:

To solve this problem, first you have to isolate by the value of a from both sides of the equation.

First, group like terms. (combine like terms)

3a+2a+5-25=180

Add numbers from left to right.

3a+2a=5a

5a+5-25=180

Next, add & subtract numbers from left to right.

5-25=-20

5a-20=180

Also, add 20 from both sides.

5a-20+20=180+20

Solve.

180+20=200

5a=200

Then, divide by 5 from both sides.

5a/5=200/5

Last but not least, solve.

200/5=40

Finally, the value of A is 40.

Answer 2

Answer:

a=40

Step-by-step explanation:

(3a + 5) + (2a - 25)= 180 degree

3a + 5 + 2a - 25

= 5a -20

5a-20=180

    5a=180+20

    5a=200

       a=200/5

       a=40