Question

1 The sum of an integer 'a'
and (-7) is -1.
Find the value of a.​

Answer 1

Step-by-step explanation:

45 - (4 x 2)3

45 - (8)3

45 - 512

-467

Integer Rules

Adding Integers

The sum of 2 positives is positive. The sum of 2 negatives is negative.

Example: -3 + -4 = -7

To add 2 integers with different signs, find the DIFFERENCE of their absolute values. The sum has the sign of the integer with the greater absolute value.

Example: -6 + 4 = -2 (6-4=2. There were more negatives when you started, so the answer is negative.)

Subtracting Integers

To subtract an integer, add its opposite.

Example: - 4 - (-6) = +2 (change to -4 + (+6) then follow rules for adding integers)

Multiplying Integers

The product of 2 integers with the same sign is positive.

Example: -6 x -3 = +18

The product of 2 integers with opposite signs is negative.

Example: +4 x (-2) = -8

Dividing Integers

The quotient of 2 integers with the same sign is positive.

Example: -35 divided by -7 = +5

The quotient of 2 integers with opposite signs is negative.

Example: -16 divided by +2 = -8

To solve an equation for x, do the INVERSE operation of the term that is on the same side of the equal sign as the x. This inverse number must be done on BOTH sides of the equation.

ex. x-8 = -2

x - 8 +8 = -2 +8

x = 6

Answer 2

Answer:

a= 6

Step-by-step explanation:

$a + ( - 7) = - 1 \\ a - 7 = - 1 \\ a = 7 - 1 \\ a = 6$