HELPPP no links please Now you try it..

Solving the equation algebraically (show mathematical thinking)
251 = c - 811

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#12 find the value of x. #13 find the value of the variable.

Before simplifying, how many terms are there in the expression 2x - 5y + 3 + x?

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