Question

1.-4(y+6)=20
2.4n+7=35
3.-6-a=2a+4
4.9y-20=100
5.z-3=2z-5
​

Answer 1

Answer:

1) y=11

2) n= 7

3) a= -10/3

4) y= 40/3

5) z = 2

Answer 2

Answer:

$1. - 4(y + 6) = 20 \\ - 4x - 24 = 20 \\ - 4y = 44 \\ \\ y = - 11 \\ \\ \\ \\ 2.4n + 7 = 35 \\ \\ 4n = 35 - 7 \\ \\ 4n = 28 \\ \\ n = 28 \div 4 = 7 \\ n = 7 \\ \\ \\ \\ \\ \\ 3. - 6( - a) = 2a + 4 \\ \\ 6a = 2a + 4 \\ \\ 6a - 2a = 4 \\ \\ 4a = 4 \\ \\ a = 1 \\ \\ \\ \\ 4.9y - 20 = 100 \\ \\ 9y = 100 + 20 \\ \\ 9y = 120 \\ \\ y = 120 \div 9 = 40 \div 3 \\ \\ \\ \\ \\ \\ \\ 5.z - 3 = 2z - 5 \\ \\ 5 - 3 = 2z - z = \\ \\ 2 = 2z \\ \\ z = 1$

please mark me brainlist ✔️✔️✔️ please mark me brainlist ✔️✔️