Bytelearn - cat image with glassesAI tutor

Welcome to Bytelearn!

Let’s check out your problem:

{:[12 t=4v-3],[-6t=4v+6]:}
If 
(t,v) is the solution to the system of equations, what is the value of 
t-v ?

12t=4v36t=4v+6 \begin{array}{l} 12 t=4 v-3 \\ -6 t=4 v+6 \end{array} \newlineIf (t,v) (t, v) is the solution to the system of equations, what is the value of tv t-v ?

Full solution

Q. 12t=4v36t=4v+6 \begin{array}{l} 12 t=4 v-3 \\ -6 t=4 v+6 \end{array} \newlineIf (t,v) (t, v) is the solution to the system of equations, what is the value of tv t-v ?
  1. Write System Equations: Write down the system of equations.\newlineWe have the following system of equations:\newline12t=4v312t = 4v - 3\newline6t=4v+6-6t = 4v + 6\newlineWe need to find the value of tvt - v.
  2. Solve First Equation for tt: Solve the first equation for tt. From the first equation, we can solve for tt by dividing both sides by 1212: t=4v312t = \frac{4v - 3}{12}
  3. Solve Second Equation for t: Solve the second equation for t.\newlineFrom the second equation, we can solve for tt by dividing both sides by 6-6:\newlinet=4v+66t = \frac{4v + 6}{-6}
  4. Set Expressions Equal: Set the expressions for tt from both equations equal to each other.\newlineSince both expressions are equal to tt, we can set them equal to each other:\newline4v312=4v+66\frac{4v - 3}{12} = \frac{4v + 6}{-6}
  5. Cross-Multiply for v: Cross-multiply to solve for vv. Cross-multiplying gives us: 6(4v3)=12(4v+6)-6(4v - 3) = 12(4v + 6) 24v+18=48v+72-24v + 18 = 48v + 72
  6. Combine Like Terms: Combine like terms and solve for vv. Add 24v24v to both sides and subtract 7272 from both sides: 24v+24v+18=48v+24v+7272-24v + 24v + 18 = 48v + 24v + 72 - 72 18=72v18 = 72v Divide both sides by 7272: v=1872v = \frac{18}{72} v=14v = \frac{1}{4}
  7. Substitute for t: Substitute the value of vv back into one of the original equations to solve for tt. Let's use the first equation: 12t=4(14)312t = 4(\frac{1}{4}) - 3 12t=1312t = 1 - 3 12t=212t = -2 Divide both sides by 1212: t=212t = \frac{-2}{12} t=16t = \frac{-1}{6}
  8. Calculate tvt - v: Calculate tvt - v.
    tv=(16)(14)t - v = (-\frac{1}{6}) - (\frac{1}{4})
    To subtract these fractions, find a common denominator, which is 1212:
    tv=(212)(312)t - v = (-\frac{2}{12}) - (\frac{3}{12})
    tv=512t - v = -\frac{5}{12}

More problems from Is (x, y) a solution to the system of equations?