Persamaan dengan mengalikan atau membagikan kedua ruas persamaan dengan bilangan yang sama. 1.7y-3 = 3y+17 2.4z+6 = 24-2z 3.9(x-4)+2(1+4x)= 0 4.5(2y+4)-(10y-16) = 6-4y 5.3y-2(2y-3) = 6(y-4)+9
dewianiastutik
1. 7y-3 = 3y+17 7y-3y = 17+3 4y = 20 y = 20 / 4 y = 5
2. 4z+6 = 24-2z 4z+2z = 24-6 6z = 18 z = 18/2 z = 9
7y-3y = 17+3
4y = 20
y = 20 / 4
y = 5
2. 4z+6 = 24-2z
4z+2z = 24-6
6z = 18
z = 18/2
z = 9
3. 9(x-4) + 2(1+4x) =0
9x-36 + 2-8x = 0
9x - 8x - 36 + 2 =0
1 x - 38 = 0
1 x = 0 +38
x = 38 /1 = 38
4.5(2y+4)-(10y-16) = 6-4y
10y+20 - 10y-16 =6-4y
10y - 10y + 4y = 6 -20 +16
4y = 2
y = 2/4
y = 0.5