3x + (-2x) would be just subtracting 2x from 3x, so it would be 1x or x. Hope this helped<3
2s+14=12
2s=-14+12
2s=-2
s=-2÷2
s=-1
Answer:
y=2x+14
Step-by-step explanation:
y=mx+b
hope its right
So to set up the equation we have:
<span><span><span>4M</span><span>4+M</span></span>=<span>127</span></span>
<span>28M=12(4+M)</span>
<span>28M=48+12M</span>
<span>28K−12M=48</span>
<span>(28−12)M=48</span>
<span>16K=48</span>
<span>M=<span>4816</span></span>
<span>M=3</span>
So Marna can clean the chimney alone in 3 hours
