Step 1: Choose which method you would like to use to solve
Though we can solve using either substitution or elimination, we will use substitution for this one
Step 2: Substitute y for y
-7+3x=3x+8
Step 3: Subtract 3x on both sides
-7+3x=3x+8 -3x=-3x _________ -7=8
Though we would usually use the x value to solve for y, in this case the x values canceled each other out. We are now left with 2 numbers set equal to each other, and this equation is false. Since -7 does not equal 8, the system of equation have no solution.
Hope this helps comment below for more questions :)
In this case, you first need to think about what is the formula for the circumference of a circle. <span>The formula for the circumference of a circle is 2 * PI * r, where r is the radius of the circle, and PI is the mathematical constant approximately equal to 3.14.
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