Let's solve number 7 <span>step-by-step. </span><span><span>y/23</span>=7 </span>Step 1: Multiply both sides by 23. <span><span>y/23</span>=7 </span><span><span><span>(<span>y23</span>)</span>*<span>(23)</span></span>=<span><span>(7)</span>*<span>(23) </span></span></span><span>y=<span>161 is our answer.
</span></span>Let's solve number 8 step-by-step. <span>n−4.85=12.6 </span>Step 1: Add 4.85 to both sides. <span>n−4.85+4.85=12.6+4.85 </span>n=17.45 is our answer. <span>
</span>Let's solve number 12 step-by-step. <span><span>m/5</span>=8 </span>Step 1: Multiply both sides by 5. <span><span>m/5</span>=8 </span><span><span><span>(<span>m/5</span>)</span>*<span>(5)</span></span>=<span><span>(8)</span>*<span>(5) </span></span></span><span>m=40 is our answer. </span><span>
</span>Let's solve number 16 step-by-step. <span><span>a/12</span>=8 </span>Step 1: Multiply both sides by 12. <span><span>a/12</span>=8 </span><span><span><span>(<span>a/12</span>)</span>*<span>(12)</span></span>=<span><span>(8)</span>*<span>(12) </span></span></span><span>a=<span>96 is or answer.</span></span>
With any equation you are allowed to take the logarithm of both sides so 5^c=125 now take the logarithm base 5 to both sides giving. log5(5^c)=log5(125), using the rule log(a^b)=a*log(b) you get c log5(5)=log5(125), since log5(5)=1 c=log5(125)
