Question

7+2(a+1)-3a=5a and 4y+y/5=21

Answer 1

sorryyyyyyyyyyyyyyyyyy i dont know

Answer 2

Answer:

$7 + 2(a + 1) - 3a = 5a \\ 7 + 2a + 2 - 3a = 5a \\ 9 - a = 5a \\ 9 = 5a + a \\ 9 = 6a \\ \frac{ _{3 \: \: } \cancel 9}{ _{2 \: \: } \cancel 6} = a \\ \boxed{ \underline{ \underline{ \large \frac{3}{2} }} = a} \\ \\ 4y + \frac{y}{5} = 21 \\ \frac{20y + y}{5} = 21 \\ \frac{21y}{5} = 21 \\ 21y = 21 \times 5 \\ 21y = 105 \\ y = \frac{105}{21} \\ \boxed{ \large y = \underline{ \underline{ 5}}}$