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5 votes
Y = 3x + 18
y = 15






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User Javonna
by
8.0k points

1 Answer

6 votes

Answer: " x = 1 ".

The answer for this 'system of equations' is: " [1, 15] ".

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Explanation:

To solve for x :

Given:
y = 3x + 18

y = 15 ;

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We know that:

3x + 18 = 15 ; Now, subtract 18 from Each Side of the equation:

3x + 18 − 18 = 15 − 18 ;

to get:

3x = 3 ; Now, divide Each Side of the equation by 3 ;

to isolate x on one side of the equation;

and to solve for x :

3x / 3 = 3 / 3 ;

to get: x = 1

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The answer is: " x = 1 " ;

The answer for this 'system of equations' is:
" [1, 15] " <== { written as: " [x, y] "} ;

in which: " y = 15 " ; is given in the problem.

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Hope this answer is helpful.
Best wishes!
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User Santoshsarma
by
8.1k points

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