Match the reasons to the statements in the proof. Given:

m 1 + m 5 = 180°

m 1 + m 4 = 180°

Prove:

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1.
m∠1 + m∠5 = 180° and

m∠1 + m∠4=180°

Subtraction property of equality
2.m∠1 + m∠5 = m∠1 + m∠4
Substitution
3.m∠5 = m∠4
If alternate interior angles equal, then lines are ||.
4.is parallel to
Given