Question

3x+9+11=26
b)2x-25=45
c)4x+7x-5-2=12
d)3x+3x-2=15
e)7x-3=2x+20
f)2x+7-1=-12
g)x+9+11= 16
h)2x-25=35
i)x+3+4=12
j)x+7=15

Answer 1

3x+9+11=26
3x 20 = 26
3x = 26 - 20
3x = 6
x = 6 / 3
x = 2

b)2x-25=45
2x = 45 + 25
2x = 70
x = 70/2
x = 35

c)4x+7x-5-2=12
11 x -7 = 12
11 x = 12 + 7
11x = 19
x = 19/11

d)3x+3x-2=15
6x -2 = 15
6x = 15 + 2
6x = 17
x = 17/6

e)7x-3=2x+20
7x -2x = 20 + 3
5x = 23
x = 23/5

f)2x+7-1=-12
2x = -12 - 7 + 1
2x = -18
x = -18/2
x = -9