3 years ago

Solve these equations)

Mathematics

2 answers:

tatuchka [14]3 years ago

8 0

Answer:

1. c=-2

2. 0=12 no solution

3. x=4

4. r=3/2

Step-by-step explanation:

Svetlanka [38]3 years ago

8 0

Answer:

1) 9c-3c= -8-4

6c=-12

c=-12/6

c=-2

2) 3×5x-3×2-6x=3×3x+3×2

15x-6-6x=9x+6

15x-6x-8x=6-6

15x-14x=0

x=0

3)-x+7x=24

6x=24

x=24/6

x=4

4) -2r-1/2×-2=-2

-2r+1=-2

-2r=-2-1

-2r=-3

r=-3/-2

r=3/2

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