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Tema [17]
3 years ago
14

Solve the equations by substitution Y=3x-4 Y=x+2

Mathematics
2 answers:
Fudgin [204]3 years ago
7 0

Answer:

x = 3, y = 5.

Step-by-step explanation:

Substitute y = 3x - 4 in y = x + 2

3x - 4 = x + 2

2x = 6

x = 3

Plug this into the first equation:

y = 3(3) - 4

y = 5.

Check in the second equation:

5 = 3 + 2

5 = 5.

elena-14-01-66 [18.8K]3 years ago
6 0

Answer:

x=3 y=5

Step-by-step explanation:

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3x²+8x+4 how to solve this
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3x² + 8x + 4
First, i divide the equation into two parenthesis, so that the first parts of both multiply to make the first term, 3x². 3x * x = 3x²
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Then I find two numbers that multiply to make 4, which are 1 and 4, or 2 and 2. 
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x + 2 = 0 
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