Answer:
8x - 7 + 12x after being simplified would be 20x - 7
Step-by-step explanation:
Add 8x and 12<em>x</em>.
8 + 12 = 20<em>x</em>
20<em>x</em> - 7 would be your answer.
Hope this helps!
See https://web2.0calc.com/questions/please-help_96053.
½d + 3/8 = -2d
<span>-½d -½d</span>
<span>3/8 = -2 ½d</span>
<span>/(-2
½) /(-2 ½)</span>
<span>3/20 = d </span>
That's a right angled triangle.
Hope this helps!
