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3 years ago

Solve the following system of equations: y = 2x +1 y=-x+ 4x=?y=?

Mathematics

1 answer:

photoshop1234 [79]3 years ago

5 0

Answer:

x = 1, y = 3

Step-by-step explanation:

Given the 2 equations

y = 2x + 1 → (1)

y = - x + 4 → (2)

Substitute y = 2x + 1 into (2)

2x + 1 = - x + 4 ( add x to both sides )

3x + 1 = 4 ( subtract 1 from both sides )

3x = 3 ( divide both sides by 3 )

x = 1

Substitute x = 1 into (1) and evaluate for y

y = 2(1) + 1 = 2 + 1 = 3

Then solution is x = 1, y = 3

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3 years ago

If x^2=y^2+z^2 what does x equal?

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Solve the following system of equations: y = 2x +1 y=-x+ 4x=?y=?​

Solve the following system of equations: y = 2x +1 y=-x+ 4x=?y=?