Question

What is the solution to the system of equations? y = 1/3x-10 2x + y = 4

Answer 1

Answer:

/ Solve equation [2] for the variable y

[2] y = -2x + 4

// Plug this in for variable y in equation [1]

[1] 3•(-2x+4) - x = -30

[1] - 7x = -42

// Solve equation [1] for the variable x

[1] 7x = 42

[1] x = 6

// By now we know this much :

y = -2x+4

x = 6

// Use the x value to solve for y

y = -2(6)+4 = -8

Solution :

{y,x} = {-8,6}

Terms and topics

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Linear equations with two unknowns

Solving linear equations by substitution

Related links

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Substitution to solve linear equations | Math Planet

Solving linear equations using substitution | for Dummies

Answer 2

Answer:

(-8,6)

Step-by-step explanation:

Correct:)