2 years ago

I need x+y=5 and y=2x-4solved algebraically

Mathematics

2 answers:

ipn [44]2 years ago

7 0

X=3, y=2 solved algebraicly

schepotkina [342]2 years ago

4 0

Answer:

x = 3; y = 2

Step-by-step explanation:

x + y = 5

y = 2x - 4

<em>Isolate the y in the first equation</em>

y = 5 - x

y = 2x - 4

<em>Substitute the values</em>

5 - x = 2x - 4

<em>Isolate the Variable</em>

9 = 3x

<em>Simplify</em>

3 = x

<em>Plug that into the first equation</em>

3 + y = 5

<em>Subtract 3 from both sides</em>

y = 2

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