3 years ago

Solve each by elimination x+y =19 x - y = -7

Mathematics

2 answers:

Rudiy273 years ago

7 0

X + y = 19
x - y = -7
Subtract both
2y = 26, y = 13
Plug into first equation
x + 13 = 19
x = 6

Solution: x = 6, y = 13

goldenfox [79]3 years ago

5 0

Answer:

x = 6

y = 13

Step-by-step explanation:

x + y = 19

x - y = -7

To eliminate x, subtract ther second equation from the first

2y = 26

y = 13

To eliminate y, add the equations

2x = 12

x = 6

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