R-9s=2 add 9s to both sides
r=2+9s making 3r-3s=-10 become:
3(2+9s)-3s=-10 perform indicated multiplication on left side
6+27s-3s=-10 combine like terms on left side
6+24s=-10 subtract 6 from both sides
24s=-16 divide both sides by 24
s=-16/24
s=-2/3, making r-9s=2 become:
r-9(-2/3)=2 perform indicated multiplication on left side
r+6=2 subtract 6 from both sides
r=-4
So s= -2/3 and r= -4
The GCF is 3*b = 3b
Step-by-step explanation:
The GCF is the Greatest Common Factor which will divide all the numbers whose GCF it is.
To find the GCF, we factorize the polynomials first
So,

We can see that only 3 and b are common in factors of both polynomials
So,
The GCF is 3*b = 3b
Keywords: GCF, Polynomials
Learn more about GCF at:
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Quadrangle
A quadrilateral can sometimes be called: a Quadrangle ("four angles"), so it sounds like "triangle"
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