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Ivanshal [37]
3 years ago
15

Solve each system by substitution

Mathematics
2 answers:
Evgesh-ka [11]3 years ago
8 0

Answer:

x = 0, y = -5

Step-by-step explanation:

<em>you're given two equations:</em>

y = 4x - 5

y = 2x - 5

<em>to solve, just substitute y in the second equation.</em>

y = 2x - 5

4x - 5 = 2x - 5

<em>now that you have this, solve for x. </em>

4x - 5 = 2x - 5

<em>subtract 2x from both sides</em>

4x - 5 - 2x = 2x - 5 - 2x

2x - 5 = -5

<em>add 5 to both sides</em>

2x - 5 + 5 = - 5 + 5

2x = 0

<em>divide both sides by 2</em>

2x/2 = 0/2

x = 0

<em>now that you know x, substitute x for 0 in the second equation.</em>

y = 2x - 5

y = 2 * 0 - 5

y = 0 - 5

y = - 5

anyanavicka [17]3 years ago
7 0

Answer:

equalize the both sides of the functions

Step-by-step explanation:

4x-5 = 2x-5

4x = 2x

2x = x

2 = 1 meaning phi

there is no answer for this problem

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