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What is the solution of the equation: -12 = 4.7k + 11.5

User Kjbartel
by
4.5k points

1 Answer

5 votes

Answer:

k=-5

Explanation:

-12=4.7k+11.5

switch sides - 4.7k+11.5=-12

multiply both sides by 10 - 4.7k times 10 +11.5 times 10=-12 times 10

refine - 47k+115=-120

subtract 115 from both sides - 47k+115-115=-120-115

simplify it - 47k=-235

divide both sides by 47 - 47k/ 47= -235/ 47

simplify - k =-5

User Vbullinger
by
4.3k points