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Algebra Level 1

2y+3x=30

y=2x+1

what is the value of x?


The answer is 4.

Uttkarsh Kohli by uttkarsh kohli , 26, India

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4 solutions

Uttkarsh Kohli
Jul 29, 2015

2y+3x=30

since y=2x+1

2(2x+1)+3x=30

4x+2+3x=30

4x+3x=30-2

7x=28

x = 4

PLEASE UPVOTE IF SATISFIED

7 Helpful 0 Interesting 0 Brilliant 0 Confused

I did it mental.

Max Saf - 5 years, 10 months ago
Mrinmay Dhar
Jul 30, 2015

This question was bad

And you should feel bad

1 Helpful 0 Interesting 0 Brilliant 0 Confused
Raghav Gupta
Jul 30, 2015

Worst sum ever

1 Helpful 0 Interesting 0 Brilliant 0 Confused
Chandresh Shah
Aug 20, 2015

Putting the value of y = 2x + 1 In the equetion 2Y+ 3X=30. 2[2X +1 ] + 3X =30, 4X+2 + 3X =30, 7X+2=30, 7X=30-2, 7X=28, X=28/7, X =4.

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