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Aloiza [94]
3 years ago
7

X+16=3 equation help please

Mathematics
2 answers:
Setler79 [48]3 years ago
8 0

X+16=3

move +16 to the other side

sign changes from +16 to -16

X+16-16=3-16

X=-13

answer:

X=-13

IgorLugansk [536]3 years ago
3 0
Subtract 16 from both sides
x + 16 = 3,
x + 16 - 16 = 3 - 16,
x = -13

Another way to find the answer:

Keep trying numbers until something works!

Is x -19?
No, because -19 + 16 = -3, and not 3.

Is x -18?
No, because -18 + 16 = -2, and not 3.

Is x -17?
No, because -17 + 16 = -1, and not 3.

Is x -16?
No, because -16 + 16 = 0, and not 3.

Is x -15?
No, because -15 + 16 = 1, and not 3.

Is x -14?
No, because -14 + 16 = 2, and not 3.

Is x -13?
Yes, because -13 + 16 = 3
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