Question

A.4z + 3 =2z + 15
b.2q - 3 = 11
c.5s - 4 = 3
d.3t + 4 = 2 (t + 11)
e.2y = 3 (5 - y)
f.10(p - 6) = -5p
g.5(z - 4) = 3 (8 - z)
h.3(d - 3) = 5 (2d - 1)
i.3n - 2 = 6 -(8 + 3x)
j.5(6 - r) + 1 =p + 1
k.3(2x - 3) -2(1 - x) - (x + 1) =0
tolong banget..dijawab yaa..sekalian caranya...please jawab besok dikumpulin

Answer 1

A. 4z + 3 = 2z + 15
 4z + 2z = 15 - 3
6z = 12
z = 2

b.2q - 3 = 11
2q = 11 + 3
2q = 14
q = 7

c.5s - 4 = 3
5s = 3 + 4
5s = 7
s = 7/5
s = 1,4

d.3t + 4 = 2 (t + 11)
3t + 4 = 2t + 22
3t - 2t = 22 - 4
t = 18

e.2y = 3 (5 - y)
2y = 15 - 3y
2y + 3y = 15
5y = 15
y = 3

f.10(p - 6) = -5p
10p - 60 = -5p
10p + 5p = 60
15p = 60
p = 4

g.5(z - 4) = 3 (8 - z)
5z - 20 = 24 - 3z
5z + 3z = 24 + 20
8z = 44
z = 44/8
z = 5,5

h.3(d - 3) = 5 (2d - 1)
3d - 9 = 10d - 5
3d - 10d = -5 + 9
-7d = 4
d = 4/-7
d = -0,57

i.3n - 2 = 6 -(8 + 3x)
(ini variabelnya n atau x?)
3n - 2 = 6 (-8 - 3x)
3n - 2 = -48 - 18x
3n + 18x = 2 - 48
3n + 18x = -46

j.5(6 - r) + 1 =p + 1
30 - 5r + 1 = p + 1
-5r + 31 = p + 1
-5r - p = 1 - 31
-5r - p = -30

k.3(2x - 3) -2(1 - x) - (x + 1) =0
(6x - 9) - (2 - 2x) - (x + 1) = 0
(6x - (-2x) - x) + ((-9) - 2 - (1)) = 0
7x + (-12) = 0
7x - 12 = 0
7x = 12
x = 12/7
x = 1,7