I need some help with a couple of two column proofs.

Question

anonymous · Answer

Check my answers? I will give a medal


1.
Given: x/6+2=15
prove: x=78

x/6+2=15       a. Given
x/6=13            b. subtraction property of equality 
x=78                c. multiplication property of equality





2.
Given: m<RST=5x and m<UVW=7x  
          <RST and <UVW are supplementary


 m<RST=5x and m<UVW=7x  
<RST and <UVW are supplementary   Given

m<RST + m<UVW=180                    definition of  supplementary angles

5x+7x=180                                     a. substitution method?
12x=180                                         b. add like terms
x=15                                               c. division property of equality

anonymous · Answer

@souleaterz