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Dennis_Churaev [7]

4 years ago

9

(a/20)+(4/15)=(9/15)

1 answer:

Annette [7]4 years ago

7 0

<span>(a/20)+(4/15)=(9/15)
a/20 = </span>(9/15)-<span>(4/15)
</span><span>a/20 =5/15
</span><span>a/20 =1/3
a=20/3
</span>

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y

=

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<u><em></em></u>

<u><em>→ Step 1: Subtract 7 from both sides :</em></u>

<u><em></em></u> $-3x+7-7=1-7$ <u><em></em></u>

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<em><u>→ Step 2: Divide both sides by -3:</u></em>

<em><u /></em> $\frac{-3x}{3}=\frac{-6}{3}$ <em><u /></em>

<em><u /></em> $x=2$ <em><u /></em>

<em><u /></em>

<em><u>Answer :</u></em>

<em><u /></em> $x=2$ <em><u /></em>

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