Answer:
The anwser you are looking for is number 2
Step-by-step explanation:
Refer to the image that I attached to my answer.
According to the graphing calculator, the two equations have two points of intersections (the points where the different colored lines cross).
Happy Studying~
Answer:
C
Step-by-step explanation:
Look at the picture I've sent the explanation is inside.
Let's solve your equation step-by-step.
<span><span>7<span>(<span>4−a</span>)</span></span>=<span>3<span>(<span>a−4</span>)
</span></span></span>Step 1: Simplify both sides of the equation.
<span><span>7<span>(<span>4−a</span>)</span></span>=<span>3<span>(<span>a−4</span>)
</span></span></span><span>Simplify:
</span><span><span><span>−<span>7a</span></span>+28</span>=<span><span>3a</span>−12
</span></span>Step 2: Subtract 3a from both sides.
<span><span><span><span>−<span>7a</span></span>+28</span>−<span>3a</span></span>=<span><span><span>3a</span>−12</span>−<span>3a
</span></span></span><span><span><span>−<span>10a</span></span>+28</span>=<span>−12
</span></span>Step 3: Subtract 28 from both sides.
<span><span><span><span>−<span>10a</span></span>+28</span>−28</span>=<span><span>−12</span>−28
</span></span><span><span>−<span>10a</span></span>=<span>−40
</span></span>Step 4: Divide both sides by -10.
<span><span><span>−<span>10a/</span></span><span>−10</span></span>=<span><span>−40/</span><span>−10
</span></span></span><span>a=4
</span>Answer:
<span>a=<span>4</span></span>