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4 votes
Solve the system of equations using substitution.
y = -2X +1
4x + 2y = -2

2 Answers

5 votes

Answer:

Explanation:

4x + 2(-2X +1) = -2

Order of operations -

4x + -4x +2 = -2

Combine terms

4x-4x=0x

2 = -2

User Joanne Chow
by
9.0k points
4 votes

Answer:

no solution

Explanation:

y = - 2x + 1 → (1)

4x + 2y = - 2 → (2)

substitute y = - 2x + 1 into (2)

4x + 2(- 2x + 1) = - 2 ← distribute parenthesis and simplify left side

4x - 4x + 2 = - 2 ( subtract 2 from both sides )

0 = - 4 ← not possible

this indicates the system of equations has no solution

User Eusid
by
9.2k points

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