The answer is 1 because when you subtract 972 from 932 you get 40. Then u add 812 and 40 to see if u get 852 and u do, so add 40 to 852 and you get 892.
Answer:
125, 105, 120
Step-by-step explanation:
You would first make an equation with what you know:
x + 45 + x + 25 + x + 40 = 350.
Now, you would simplify and add like terms.
3x + 110 = 350
Now, you would subtract 110 from both sides.
3x = 240
Now, you would divide both sides by 3.
x = 80
Now that you know what x is, simply plug it in to the respective equations for all three sides.
x + 45 would become 80 + 45, and add up to 125.
x + 25 would become 80 + 25, and add up to 105.
x + 40 would become 80 + 40, and add up to 120.
To check your work, you would now add the three totals.
125 + 105 + 120 = 350.
It will help you:)
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Let's solve your equation step-by-step.
Step 1: Step 1: Simplify both sides of the equation.<span><span><span>9<span>(<span>k−5</span>)</span></span>−12</span>=<span><span>7k</span>−<span>(<span><span>−6</span>−<span>2k</span></span>)</span></span></span><span><span><span>9<span>(<span>k−5</span>)</span></span>−12</span>=<span><span>7k</span>+<span><span>−1</span><span>(<span><span>−6</span>−<span>2k</span></span>)</span></span></span></span><span>(Distribute the Negative Sign)
</span><span><span>9<span>(<span>k−5</span>)</span></span>−12</span>=<span><span><span>7k</span>+<span><span>(<span>−1</span>)</span><span>(<span>−6</span>)</span></span></span>+<span><span>−1</span><span>(<span>−<span>2k</span></span>)
</span></span></span><span><span>9<span>(<span>k−5</span>)</span></span>−12</span>=<span><span><span>7k</span>+6</span>+<span>2<span>k
</span></span></span><span><span><span><span><span><span>(9)</span><span>(k)</span></span>+<span><span>(9)</span><span>(<span>−5</span>)</span></span></span>+</span>−12</span>=<span><span><span>7k</span>+6</span>+<span>2k</span></span></span>(Distribute)
<span><span><span><span><span><span>9k</span>+</span>−45</span>+</span>−12</span>=<span><span><span>7k</span>+6</span>+<span>2k</span></span></span><span><span><span>(<span>9k</span>)</span>+<span>(<span><span>−45</span>+<span>−12</span></span>)</span></span>=<span><span>(<span><span>7k</span>+<span>2k</span></span>)</span>+<span>(6)</span></span></span>(Combine Like Terms)
<span><span><span>9k</span>+<span>−57</span></span>=<span><span>9k</span>+6</span></span><span><span><span>9k</span>−57</span>=<span><span>9k</span>+6
</span></span>Step 2: Subtract 9k from both sides.
<span><span><span><span>9k</span>−57</span>−<span>9k</span></span>=<span><span><span>9k</span>+6</span>−<span>9k</span></span></span><span><span>−57</span>=6</span>Step 3: Add 57 to both sides.<span><span><span>−57</span>+57</span>=<span>6+57</span></span>=63
