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Solving Equations

Solving by equation

x = 3x - 5

x/3 = 6

y/3 + 5 = 8

-8 = 2x/9

Find f(1) for f(x) = x3 + x2 - 1

A function gives the value of C as 2 ´ (22/7) ´ r. Find C when r = 14 cm and r = 70 cm.

Solution Preview

x = 3x - 5
Solve:
x = 3x - 5
x - 3x = -5
-2x = -5
x = 5/2 = 2.5

x/3 = 6
Solve:
x/3 = 6
x = 6*3
x = 18

y/3 + ...

Solution Summary

Equations are solved.

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