SOLUTION: Erika is five times the age of Ali. 4years from now, Erika will be three times as old as Ali will be then.

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Question 1148211: Erika is five times the age of Ali. 4years from now, Erika will be three times as old as Ali will be then.
Found 2 solutions by josmiceli, josgarithmetic:
Answer by josmiceli(19441) About Me  (Show Source):
You can put this solution on YOUR website!
You left out the question. How old are they now??
Let +x+ = Ali's age now
Erika's age is +5x+
---------------------------------
+5x+%2B+4+=+3%2A%28+x+%2B+4+%29+
+5x+%2B+4+=+3x+%2B+12+
+2x+=+8+
+x+=+4+
and
+5x+=+20+
------------------
Erika is 20
Ali is 4
------------------
check:
+5x+%2B+4+=+3%2A%28+x+%2B+4+%29+
+5%2A4+%2B+4+=+3%2A8+
+20+%2B+4+=+24+
+24+=+24+
OK

Answer by josgarithmetic(39616) About Me  (Show Source):
You can put this solution on YOUR website!
system%28x=5y%2Cx%2B4=3%28y%2B4%29%29
x, Erica
y, Ali