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(3x + 5) + (x - 1) =90
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17 votes
17 votes
(3x + 5) + (x - 1) =90

(3x + 5) + (x - 1) =90-example-1
User Purple Tentacle
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2.6k points

2 Answers

21 votes
21 votes

Answer:


x=(43)/(2)

Explanation:


Rule: \left(a\right)=a\\=3x+5+x-1=90\\3x+x+5-1=90\\3x+x=4x \rightarrow 4x+5-1=90\\5-1=4 \rightarrow 4x+4=90\\(-4)~4x+4-4=90-4\\4x=86\\(/ 4)~(4x)/(4)=(86)/(4)\\x=(43)/(2)

User Lantius
by
2.7k points
26 votes
26 votes

Answer:

Explanation:

x=

43/2

User Markhor
by
3.0k points
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