10x = -80
Note the equal sign. What you do to one side, you do to the other.
Divide 10 from both sides
10x/10 = -80/10
x = -80/10
x = -8
-8 is your answer for x
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~<em>Rise Above the Ordinary, Senpai</em>
Well 7x+2x=9x and 9x - 1 = 9x - 1
so the answer should be 9x-1
Answer: the answer is 27.1 km
Step-by-step explanation:
Divide both numbers in one of the ratios by their highest common factor. This will give you the scale factor of the bigger triangle to the smaller triangle.
6+3n≤40
Use inverse operations i.e.
4x+2<10
-2 -2
4x<8
4*x/4<8/4
x<2
