Write the algebraic equations for the following statements and solve:
(a) A number $x$ plus $7$ is equal to $16$ . What is $x$
(b) $20$ plus a number $b$ is $26.3$ . What is $b$ ?
(c) A number multiplied by $3$ is $36$ . What is the number?

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Solution

(a)
$x + 7 = 16$
$x = 9$
(B)
$20 + b = 26.3$
$b = 6.3$
(C)
let the no. be $x$
$3 x = 36$
$x = 12$

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