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X ∥ y. If ∠7 = 36° and ∠4 = (5a + 4) °, what is the value of a?.

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Noahosmonthgo

# ∠7 = 36°

# ∠4 = (5a + 4) °

# ∠7 + ∠4 = 180°

# 36° + (5a + 4) ° = 180°

# 5a + 40 = 180

# 5a = 180 - 40

# 5a = 140

# a = 140 / 5

# a = 28