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Equations and Inequalities

Equations and Inequalities

Solving Equations with Multiple Variables Exercises

Example 1

The volume V of a rectangular box is given by the formula V = lwh where l is length, w width, and h height. What is the height of a rectangular box with volume 56 cm3, length 4 cm, and width 2 cm?

Example 2

Solve the formula 8x + 4y = 12 for y.

Example 3

Solve the formula z3 – 3x + z2 = z for x.

Example 4

If 4xy = 5, find x when y = 15.

Example 5

If y2 + 2y – 3x = 5, find x when y = 2.