Solve the system of equations 4x-5y=-64x−5y=−6 and -6x+7y=12−6x+7y=12 by combining the equations.

How to do this , and can some one explain

Can someone me do math because i am having a breakdown rn because i don’t get it

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