Which of the following equations has a different value of x than the others?

x - 0.025 = 0.6
x + 9/8 = 7/4
x + 0.875 = 1.5
x - 7/8 = -3/2

1 answer

To find the value of x for each equation, we will isolate x on one side.

For equation 1: x - 0.025 = 0.6
Adding 0.025 to both sides: x = 0.625

For equation 2: x + 9/8 = 7/4
Subtracting 9/8 from both sides: x = 7/4 - 9/8
Finding a common denominator: x = 14/8 - 9/8
Simplifying: x = 5/8

For equation 3: x + 0.875 = 1.5
Subtracting 0.875 from both sides: x = 1.5 - 0.875
Simplifying: x = 0.625

For equation 4: x - 7/8 = -3/2
Adding 7/8 to both sides: x = -3/2 + 7/8
Finding a common denominator: x = -12/8 + 7/8
Simplifying: x = -5/8

Only equation 2 has a different value of x than the others, which is 5/8.