1/4 of Mie's savings was equal
to 2/5 of Cheko's savings.
When Cheko increased his savings by $70 and Mie spent $134,
they had the same amount of savings.
How much savings did Cheko have finally?
M - 134==C + 70, solve for C, M
Use substitution to get:
M==$544 - what Mie started with
C ==$340 - what Cheko started with.
$340 + $70 ==$410 - what Cheko ended up with.
$544 - $134==$410 - what Mie ended with