Mathematics, 02.03.2020 01:50 michaylabucknep7u3y2
What do the angle measures have to be for the lines a and b to be parallel? should get two numbers
Answers: 2
![\bf (x+85)+4(x-20)=180\implies (x+85)+(4x-80)=180 \\\\\\ 5x+5=180\implies 5x=175\implies x = \cfrac{175}{5}\implies x = 35 \\\\[-0.35em] ~\dotfill\\\\ \stackrel{\measuredangle (x+85)}{(35)+85\implies 120}\qquad \qquad \stackrel{\measuredangle 4(x-20)}{4(35-20)\implies 60}](/tpl/images/0529/7002/d366c.png)
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What do the angle measures have to be for the lines a and b to be parallel? should get two numbers
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