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Answer:
Step-by-step explanation:
<h3>(2,1) (4,2)</h3>
Simplify each term<span>.
</span><span>10x−20−11=4+3x
</span>Add <span>−20</span><span> and </span><span>−11</span><span> to get </span><span><span>−31</span>.
</span><span>10x−31=4+3x
</span>Move 3x to the left-hand side of the equation<span> by subtracting </span><span>3x</span><span> from both sides.
</span><span>10x−31−3x=4
</span>Add <span>10x</span><span> and </span><span>−3x</span><span> to get </span><span><span>7x</span>.
</span><span>7x−31=4
</span>Since <span>−31</span><span> does not contain the </span>variable<span> to solve for, move it to the right-hand side of the </span>equation<span> by adding </span>31<span> to both sides.
</span><span>7x=31+4
</span>Add 31<span> and </span>4<span> to get </span><span>35.
</span><span>7x=35
</span>Divide<span> each </span>term<span> in the </span>equation<span> by </span><span>7.
</span><span>x=5</span>
Answer:
Answer:
90°
90°
90°
90°
edc=180-90-53=37by sum of angle of triangle
edf=90-37=53
fed=cde=53alternate angle
fea=180-fae-efa=180-37-90=53
efa=180-90=90linear pair
fae=180-<e-edf=180-90-53=37
eab=90-fae=90-37=53
aeb=180-b-bae=180-90-53=37
