How to solve x + 5y = 8x - 20
1 answer:
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Notice the picture
we know DE, or the whole segment is 10x-12
and P is the midpoint
so.. the point P is cutting DE in two equal halves,
namely, DP and PE
so... whatever 10x-12 is, DP is half of that
thus
solve for "x",
how long is DP? well, once you get "x", plug it in 3x+2,
that's how long DP is :)
we know DE, or the whole segment is 10x-12
and P is the midpoint
so.. the point P is cutting DE in two equal halves,
namely, DP and PE
so... whatever 10x-12 is, DP is half of that
thus
solve for "x",
how long is DP? well, once you get "x", plug it in 3x+2,
that's how long DP is :)
