To simplify the first equation, we need to subtract the second fraction from the first:
5/8 - (-7/8) = 5/8 + 7/8= (5 + 7)/8= 12/8= 3/2
So, 5/8 - (-7/8) = 3/2.
To solve the second equation, we can add x to both sides to isolate x:
7 - (-x) = -57 + x = -5x = -5 - 7x = -12
So, the solution to the second equation is x = -12.
To simplify the first equation, we need to subtract the second fraction from the first:
5/8 - (-7/8) = 5/8 + 7/8
= (5 + 7)/8
= 12/8
= 3/2
So, 5/8 - (-7/8) = 3/2.
To solve the second equation, we can add x to both sides to isolate x:
7 - (-x) = -5
7 + x = -5
x = -5 - 7
x = -12
So, the solution to the second equation is x = -12.