Which of these is a correct statement? a. the equation 3 – x + 4 = –x + 7 has no solutions. b. the equation x – 2 = 15x + 8 – 9x has one solution. c. the equation 4x + 5 + 8x = 25 + 2x has two solutions. d. the equation 9 + 3x – 1 = 10 + 3x has an infinite number of solutions.

What is the next step in the given proof? choose the most logical approach. a. statement: m 1 + m 2 + 2(m 3) = 180° reason: angle addition b. statement: m 1 + m 3 = m 2 + m 3 reason: transitive property of equality c. statement: m 1 = m 2 reason: subtraction property of equality d. statement: m 1 + m 2 = m 2 + m 3 reason: substitution property of equality e. statement: 2(m 1) = m 2 + m 3 reason: substitution property of equality