Practice problem
Solve equation (A) and plug the result into expression (B). x=9(A)7x−6(B)\begin{array}{lc} x=9&\quad\small{(A)}\\ 7x-6&\quad\small{(B)} \end{array}x=97x−6(A)(B)
575757
606060
636363
666666
Type a concept, like “slope” or “photosynthesis”.