Answer :
The value of x makes the equation true is -16. Therefore, option A is the correct answer.
The given equation is x+7=-9.
What is an equation?
In mathematics, an equation is a formula that expresses the equality of two expressions, by connecting them with the equals sign =.
The given equation can be solved as follows:
x+7=-9
Transpose 7 to RHS of the equation, we get
x=-9-7
=-16
The value of x makes the equation true is -16. Therefore, option A is the correct answer.
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A. -16 is the right answer
X + 7 = -9
Subtract -7 from both sideS
X = -16
Or
Then divide both by 1
X = -16
X + 7 = -9
Subtract -7 from both sideS
X = -16
Or
Then divide both by 1
X = -16
