The process described here is called "Evaluating" the expression... if that's what you're looking for?
If no base is mentioned, asssume base 10
remember

translates to

so
since no base mentioned, assume base 10

translates to

then
1000=2x
divide both sides by 2,
500=x
34 and -14 as proven here:
Sum: 34 + -14 = 20
Difference: 34 - -14 = 48
just the opposite (when it says negative it gonna be positive)
M=153.46w, L=128.90+127.68w they will be equal when M=L so
153.46w=128.90+127.68w subtract 127.68 from both sides...
25.78w=128.90 divide both sides by 25.78
w=5
So after five weeks they have deposited the same amount of money.
Each of them has deposited <span>$153.46*5=$767.30, so the account has twice that amount.
Thus the total amount in the account is 767.30*2=$1534.60</span>