Which of the following equations has a different value of x
than the others?
x + 98 = 74
x − 0.025 = 0.6
x − 78 = −32
x + 0.875 = 1.5 explanation
The equation x - 78 = -32 has a different value of x than the others.
To explain this, let's solve each equation for x:
1) x + 98 = 74
Subtract 98 from both sides:
x = 74 - 98
x = -24
2) x - 0.025 = 0.6
Add 0.025 to both sides:
x = 0.6 + 0.025
x = 0.625
3) x - 78 = -32
Add 78 to both sides:
x = -32 + 78
x = 46
4) x + 0.875 = 1.5
Subtract 0.875 from both sides:
x = 1.5 - 0.875
x = 0.625
As we can see, equations 2 and 4 have the same value of x, which is 0.625. The other two equations have different values of x: -24 and 46. Therefore, equation 3 has a different value of x than the others.