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Directions: Solve each system by substitution.

x=-1

y=-6

Step-by-step explanation:

To solve for x and y in 2x+3y=-20 start by substituting y for 6x

2x+3(6x)=-20 simplify the left side by multiplying 3 and 6x then add the product to 2x

20x=-20 now divide 20 on both sides

x=-1

now that you know what x is, you can solve for y

2x+3y=-20 substitute x for -1

2(-1)+3y=-20 now simplify by multiplying 2 and -1

-2+3y=-20 add -2 on both sides

3y=-18 now divide 3 on both sides

y=-6

57 732

step-by-step explanation:

i dont really.know

1) c 2143.6 cm

2) c 113.0 m

3) a 33.5 ft

4)   d 2 cm

5) c 20 mm

6) 180 in

7) d 120 ft