3 years ago

= – 1 is a solution of the equation

Mathematics

1 answer:

Nina [5.8K]3 years ago

4 0

Answer:

Step-by-step explanation:

substitute -1 into all of the formulas, if both sides are equal, then it is correct, for C:

2(x-2)+6 = 0, sub -1

2(-1-2)+6=0, simplify and work out

2(-3)+6=0

-6+6=0

0=0

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