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5x(x+3)=(x)(5x-3)+36

5x(x+3)=(x)(5x-3)+36
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1 vote
5x(x+3)=(x)(5x-3)+36

User Ianpetzer
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2 Answers

6 votes
5x^2 + 15x = 5x^2 - 3x + 36
5x^2 - 5x^2 + 15x = 5x^2 - 5x^2 - 3x + 36
15x = -3x + 36
15x + 3x = -3x + 3x + 36
18x = 36
18x ÷ 18 = 36 ÷ 18
x = 2

ANSWER: x = 2
Wait is this math ??? I thiught ut was history
User Jeanmarc
by
8.0k points
4 votes
5x(x+3)=x(5x-3)+36
5x^2+15x=5x^2-3x+36
5x^2-5x^2+15x+3x=36
18x=36
x=36/18
x=2
User James Ward
by
8.2k points
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