Linear Equations in One Variable

Q1: Warm up question. Solve for the variable: 2 x = 4

x=1
x=2
x=3
x=4
Good answeres: 1

Q2: Select Linear Equations:

5x-4=1
5x²-4=1
3x+4=2x
3x+4=2x²
x (2+4x)=10
Good answeres: 2

Q3: Select Equations with only ONE variable:

x+y=1
y²+2=5
a+2c=2a²
x+4=2x
3x=2x+4x-1
Good answeres: 3

Q4: Select identity equation (true for any real number as variable)

3x=2x+x
4x+2=10
2x−10=2x-8
Good answeres: 1

Q5: Select conditional equation (true for only some values of the variable):

3x=2x+x
4x+2=10
2x−10=2x-8
Good answeres: 1

Q6: Select inconsistent equation (there is no solution for any variable):

3x=2x+x
4x+2=10
2x−10=2x-8
Good answeres: 1

Q7: Solve the equation `(5x)/4+1=11`

x=1
x=2
x=8
x=10
x=11
Good answeres: 1

Q8: Solve the equation `(5x+1)/3=7`

x=1
x=2
x=3
x=4
x=7
Good answeres: 1

Q9: Solve the equation `(2x+1)/2+(x-1)/4=4`

x=1
x=2
x=3
x=4
x=5
Good answeres: 1

Q10: Find value of p: `2*p+1=3*p+2`

p=-1
p=0
p=1
p=2
p=3
Good answeres: 1

Q11: Solve the equation: `(d^2*pi)/4=d*pi`

`d=4`
`d=pi`
`d=1/4`
`d=4*pi`
this is not linear equation
Good answeres: 1

Q12: What is the value of r in equation: `3*(r+3)=4*(1+r)`

r=-1
r=1
r=1/2
r=4
r=5
Good answeres: 1

Q13: Solve the equation: −3+5+6g=11−3g

g = -1
g = 1
g = 2
g = 9
Good answeres: 1

Q14: 4 (x−3) + 12 = 15−5 (x+6)

x = -5/3
x = 5/3
x = 15
x = -15
Good answeres: 1

Q15: `x/2-x/3=8`

x=5/8
x=6/8
x=8/6
x=48
Good answeres: 1

Q16: Solve this: 0.16(5x-2) =0.4x +7

x=10.1
x=18.3
x=21.7
x=57
Good answeres: 1

Q17: `9/5*(3-x)=3/4*(x-3)`

x=1
x=3
x=5
x=9
Good answeres: 1

Q18: `(10x+2)/(2x+1)=8/2`

x=1
x=2
x=3
x=5
x=10
Good answeres: 1

Q19: 17−2k=2k+5+2k

k=2
k=3
k=6
k=9
Good answeres: 1

Q20: In 16 years, Tom will be 3 times as old as he is right now. How old is he now?

8 years
13 years
16 years
16/3 years
Good answeres: 1