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konstantin123 [22]
3 years ago
12

If x-1=0 and y+3=0, what is the value of x-y?​

Mathematics
2 answers:
lozanna [386]3 years ago
7 0

Answer: x - y = 4

Step-by-step explanation:

x - 1 = 0

Add 1 to both sides of the equation , that is

x - 1 + 1 = 0 + 1

x = 1

Also

y + 3 = 0

subtract 3 from both sides of the equation , that is

y + 3 - 3 = 0 - 3

y = -3

Therefore :

x - y = 1 - (-3)

x - y = 1 + 3

x - y = 4

Vera_Pavlovna [14]3 years ago
5 0

Answer:

4

Step-by-step explanation:

x is 1

y is -3

1- - 3 is 1+3 which is 4

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Step-by-step explanation:

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