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MrMuchimi
4 years ago
6

Solve the equation 21=6-x-4x

Mathematics
1 answer:
Gemiola [76]4 years ago
6 0

Answer:

21 = 6 - <em>x</em> - 4<em>x</em>

simplify 6-x-4<em>x</em> to 6-5<em>x</em>

21 = 6-5<em>x</em>

subtract 6 from both sides

21-6 = -5<em>x</em>

simplify 21 - 6 to 15

15 = -5<em>x</em>

divide both sides by -5

\frac{-15}{5} = <em>x</em>

simplify \frac{15}{5}  to 3

-3 = <em>x</em>

switch sides

<em>x</em> = -3

Step-by-step explanation:

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