Question

1) (-6)+(-7)=× 2) -7+×=-73) -6+×=0​

Answer 1

1)

$( - 6) + ( - 7) =x \\ - 13 = x \\ x = - 13$

2)

$- 7 + x = - 7 \\ x = - 7 + 7 \\ x = 0$

3)

$- 6 + x = 0 \\ x = 6$

4)

$- \frac{2}{3} + ( - \frac{1}{3} ) = x \\ - \frac{3}{3} = x \\ x = - 1$

Answer 2

Let's solve the given equations step by step:

1. (-6) + (-7) = ×

To find the value of ×, simply add the numbers on the left-hand side:

× = (-6) + (-7) × = -13

So, the solution to the first equation is × = -13.

2. -7 + × = -73

To find the value of ×, isolate it on one side of the equation by performing inverse operations:

Add 7 to both sides:

-7 + × + 7 = -73 + 7

Simplify:

× = -66

So, the solution to the second equation is × = -66.

3. -6 + × = 0

To find the value of ×, isolate it on one side of the equation by performing inverse operations:

Add 6 to both sides:

-6 + × + 6 = 0 + 6

Simplify:

× = 6

So, the solution to the third equation is × = 6.