Question

5/8-(-7/8)= -13,7-(-x)=-5,2

Answer 1

1) 5/8-(-7/8)=5/8+7/8=3/2=1,5
Ответ:1,5
2) -13,7-(-х)=-5,2
х=-5,2+13,7
х=8,5
х=8, 1/2
Ответ:8, 1/2

Answer 2

Let's solve the two equations step-by-step:

1. 5/8 - (-7/8) = -13 To subtract a negative number, we can change the subtraction to addition: 5/8 + 7/8 = -13

Now, add the fractions: (5 + 7)/8 = -13

Combine the numerators: 12/8 = -13

Reduce the fraction: 3/2 = -13

However, it seems there might be an error in the equation, as there is no solution for x that satisfies the equation. Let's move on to the second equation:

2. -7 - (-x) = -5.2 To remove the negative sign before the bracket, we can rewrite the equation: -7 + x = -5.2

Now, isolate x by moving -7 to the other side of the equation: x = -5.2 + 7

x = 1.8

So, the solution for the second equation is x = 1.8.