Question

1.2a+1=a-3
2.12+3a=5+2a
3.6-5y=9-4y
4.7n-4=4n-17
5.3(x+1)=2(x+4)

tolong bantu yaa,,jangan lupa pake cara
makasih

Answer 1

1. 2a + 1 = a - 3
2a - a = -3 -1
a = -4
2. 12 + 3a = 5 + 2a
3a - 2a = 5 -12
a = -7
3. 6 - 5y = 9 - 4y
-5y + 4y = 9 - 6
y = 3
4. 7n - 4 = 4n - 17
7n - 4n = -17 + 4
3n = -13
n = -4,3
5. 3 ( x + 1 ) = 2 ( x + 4 )
3x + 3 = 2x + 8
3x - 2x = 8 -3
x = 5

Maaf kalau salah..

Answer 2

1. 2a+1=a-3 2a-a = -1 a. = -4 2. 12+3a = 5+2a 12-5 = 3a-2a 7 = a 3. 6-5y = 9+4y 9-6 = 5y-4y 3 = y 4. 7n-4 = 4n-17 7n-4n = -17+4 3n. = 13 5. 3(x+1) = 2(x+4) 3x+3. = 2x+8 3x-2x. = 8-3 X. = 5