To round a number to the nearest hundred, we count two places to the left of the decimal point, or from the last digit if the number is a whole number.
If the second digit from the last digit is upto 5, we add 1 to the preceding digit and we complete the last two numbers with zeros.
Therefore, any number from 11,950 to 12,049, will result to 12,000 when rounded to the nearest hundred.
Let's solve for x.<span>y=<span><span><span><span>−5</span>2</span>x</span>−5</span></span>Step 1: Flip the equation.<span><span><span><span><span>−5</span>2</span>x</span>−5</span>=y</span>Step 2: Add 5 to both sides.<span><span><span><span><span><span>−5</span>2</span>x</span>−5</span>+5</span>=<span>y+5</span></span><span><span><span><span>−5</span>2</span>x</span>=<span>y+5</span></span>Step 3: Divide both sides by (-5)/2.<span><span><span><span><span>−5</span>2</span>x</span><span><span>−5</span>2</span></span>=<span><span>y+5</span><span><span>−5</span>2</span></span></span><span>x=<span><span><span>−<span>2y</span></span>−10</span>5</span></span>Answer:<span>x=<span><span><span>−<span>2y</span></span>−10</span><span>5</span></span></span>
