Question

Write and solve an equation to find the value of the number

the sum of twice a number and half the same number is 10

Answer 1

• Let the number be x :

`2x + (1)/(2) x = 10 \\ \\ x(2 + (1)/(2) ) = 10 \\ \\ (5)/(2) x = 10 \\ \\ 5x = 10 * 2 \\ \\ 5x = 20 \\ \\ { \underline{ \: \: x = 4 \: \: }}`