Two equations are given below:

a – 3b = 16
a = b – 2

what is the solution to the set of equations in the form (a, b)?

(–2, –6)
(–7, –9)
(–11, –9)
(–12, –10)

Good Morning

a-3b=16

a=b-2

Solve a=b -2 for a

Substitute b-2 for a in a-3b=16

a-3b=16

b-2-3b=16

Simplify both sides of the equation

-2b-2=16

Add 2 to both sides

-2b-2+2=16+2

-2b=18

Divide both sides by -2

-2b/-2 = 18/-2

b= -9

Substitute -9 for b in a=b -2

a=b -2

a=-9-2

Simplify both sides of the equation

a= -11

(-11,-9)

I hope that's help !

Happy Sunday :)

the one that has a slope of 1/2 and is positive.

step-by-step explanation: 2 buckets 1 trip ; 4 buckets 2 trips and so on.

this is answer of 144 cubic meters