Question

Which of these is a simplified form of the equation 7x + 4 = 5 + 3x + 1x?

a 3x=9
b 3x=1
c 11x=9
d 11x=1

Answer 1

b [3x = 1]

Explanation:

7x + 4 = 5 + 3x + 1x

Combine like terms:

7x + 4 = 5 + 4x

Subtract 4 from both sides:

7x = 1 + 4x

Subtract 4x from both sides:

[3x = 1]