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rewona [7]
3 years ago
12

How to solve using Substitution or Elimination? y=3x-1 y=2x+2

Mathematics
1 answer:
n200080 [17]3 years ago
4 0

By elimination:

y = 3x - 1

y = 2x + 2

Subtract the second equation from the first

0 = x - 1

y = 2x + 2

Subtract the first equation from the second

0 = x - 1

y = x + 3

Subtract the first equation from the second again

0 = x - 1

y =      4

Subtract x from both sides of the first equation

- x =  - 1

y =      4

Divide the first equation by (-1)    

x =  1

y =  4

<h3>So, the solution is  x = 1  and  y = 4   {or: (1, 4)}</h3>
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m=multiplication
d=division
a=addition
s=subtraction

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