-5x + 9y = -32
-5x - 3y = 4

Write the expression in complete factored form. 5n_(c - 3) - n(c - 3) =

Given the two similar triangles, how do i find the missing length? if a=4, b=5, and b'=7.5 find a'

1. ∠1 is complementary to ∠2 and ∠3 is complementary to ∠2. subtraction property of equality 2. m∠1 + m∠2 = 90 and m∠3 + m∠2 = 90 substitution 3. m∠1 + m∠2 = m∠3 + m∠2 definition of complementary 4. m∠1 = m∠3 given