J.R. S. answered 03/08/19
Ph.D. in Biochemistry--University Professor--Chemistry Tutor
T = cost of table
B = cost of bench
T + B = $898 ... eq. 1
T = B + $48 ... eq. 2
Substitute eq. 2 into eq. 1 and solve for B:
B + 48 + B = 898
2B + 48 = 898
2B = 850
B = $425 = cost of bench
Check:
Table + bench = 898
Table = 898 - 425 = 473
Is the table $48 more than the bench? $425 + $48 = $473 (√)
Does the price of the bench and table add to $898? $473 + $425 = $898 (√)