MATHEMATICS HIGH SCHOOL

Find the value of x    
a. 7x=21
b.9x=-81
c. 88=-11x
d 0.5x=49

Answers

Answer 1
Answer: a. x=3 because you divide both by 7
b. x=9 because again you divide both by 9
c. x=8 because you divide both by 11 to isolate the variable
d. x=98 because you divide 49 by .5
Answer 2
Answer: a. 7x=21
x=3
b. 9x=-81
x=-9
c. 88=-11x
x=-8
x/2=49
x=98

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