Question

Solve and verify your answer
3 (5a-2)+ 5(2a+4)=4
pls give step by step explanation to get marked as brainlist​

Answer 1

$3(5a - 2) + 5(2a + 4) = 4 \\ 15a - 6 + 10a + 20 = 4 \\ 25a + 14 = 4 \\ 25a = 4 - 14 \\ 25a = - 10 \\ a = \frac{ - 10}{25} \\ \\ a = \frac{ - 2}{5}$

Answer 2

Answer:

Question :-

(5a-2)+ 5(2a+4)=4

Required Answer :-

$3 (5a-2)+ 5(2a+4)=4$

$3 \times 5a - 3 \times 2 + 5 \times 2a + 5 \times 4 = 4$

$15a - 6 + 10a + 20 = 4$

$15a + 10a - 6 + 20 = 4$

$25a + 14 = 4$

$25a = 4 - 14$

$25a = - 10$

$a = \frac{ - 10}{25}$

$a \: = \frac{ - 1\cancel0}{2\cancel5}$

$a = \frac{ - 2}{5}$

Therefore the value of a is -2/5