Question

Write the algebraic equations for the following statements and solve:
(a) Twice a number $p$ plus $3$ is $17$. What is the number?
(b) Twice a number $c$ less $2$ is $36$. What is $c$?
(c) Thrice a number $y$ is $21$. What is $y$?

Answer 1

(a)

$2p+3=17$

$2p=14$

$p=7$

(b)

$2c-2=36$

$c-1=18$

$c=19$

(c)

$3y=21$

$y=7$