Well put it in correct order : <span>4z-111+3z-12=300.
</span><span><span><span><span><span>4z</span>−111</span>+<span>3z</span></span>−12</span>=300</span>
<span><span><span><span><span>4z</span>−111</span>+<span>3z</span></span>−12</span>=300</span>
<span><span><span>7z</span>−123</span>=300</span>
<span><span><span><span>7z</span>−123</span>+123</span>=<span>300+123</span></span><span><span>
7z</span>=423</span>
<span><span><span>7z</span>7</span>=<span>423/7</span></span><span>
z=<span>423/7</span></span>
Your answer is z=423/7.
Hoped I helped!
Answer: is A
GOOD JOB!!!
Step-by-step explanation:
Lets write an equation for each guy's shots and score:
4A + 2B = 18
3A + 3B = 21
To solve we multiply the first equation by -3 and the second by 2:
-12A - 6B = -54
6A + 6B = 42
--------------------
-12A + 0 = -12
A = 1
to find B we substitute in the first equation:
<span>4A + 2B = 18
</span><span>4(1) + 2B = 18
</span><span>4 + 2B = 18
</span>2B = 14
B = 7
therefore there were given 7 points in an arrow in B