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Solving Equations 4 of 5 | Set 1

Solve linear equation x + 8 = -7

Solving algebraic mathematical equations step-by-step

Solution:
The equation given is

Step 1:

In the linear algebraic equation x + 8 = -7, to solve for variable 'x', we need to get 'x' by itself on one side of the equation
We need to remove 8. Here, 8 is having a plus sign. So when we shift 8 on the RHS, its sign will reverse.

We will subtract 8 from both sides.


Here, 7 is having a minus sign and 8 is having a minus sign.

In mathematics, when numbers have same signs, they are always added and sign present on both of them will prevail.

Here, adding 7 with 8 gives us 15. The numbers 7 and 8 both have a minus sign. So, the answer 15 will have a minus sign.
So, we get
The solution is complete.
Solution: For the equation x + 8 = -7, the value of x is -15.
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