Evaulate and solve for the variable !

-2x + 3x - 5 = 6 - 21

What is the range of the data below? .8090100

Which expression is equal to (f+g)(x)?

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