Answer:
x=8
Step-by-step explanation:
You move all terms that don't contain x to the right side and solve.
3x-6=18
3x=24
x=8
Answer:
<h2>y = 2x + 5</h2>
Step-by-step explanation:
The slope-intercept form of an equation of a line:

<em>m</em><em> - slope</em>
<em>b</em><em> - y-intercept</em>
The formula of a slope:

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We have the points (-2, 1) and (-4, -3). Substitute:


Put the coordinates of the point (-2, 1) to the equation:

<em>add 4 to both sides</em>

Finally:

Answer:
30 inches
Step-by-step explanation:
The area of a rectangle or square is length×width; the length is 3 inches and the width is 10 inches. So 3×10= 30 inches.
The first one is right, the third one is right