2x+x-7+3x-20=87cm
6x-27=87
6x=114
x=19
Therefore the sides are:12cm, 38cm, and 37cm
-18x-8y-14 because you need to distribute the digits
Answer:
x=-2
Step-by-step explanation:
-12=5(6x+4)+7(x+6)
30x+20+7x+42=-12
37x+62=-12
37x=-12-62
37x=-74
x= -2
I hope this will help you
