Question

If 2x/5+1=7,then find the value of x

Answer 1

Answer:

2x/5+1=7

2x/5=7+1

2x/5=8

2x=8×5

2x=40

x=40/2

x=20

Answer 2

$\begin{cases}\large\bf{\purple{ \longrightarrow}} \tt \: \frac{2x}{5} \: + \: 1 \: = \: 7 \\ \\ \large\bf{\purple{ \longrightarrow}} \tt \: \frac{2x}{5} \: = \: 7 \: - \: 1 \\ \\ \large\bf{\purple{ \longrightarrow}} \tt \: \frac{2x}{5} \: = \: 6 \\ \\ \large\bf{\purple{ \longrightarrow}} \tt \: 2x \: = \: 5 \: \times \: 6 \\ \\ \large\bf{\purple{ \longrightarrow}} \tt \: 2x \: = \: 30 \\ \\ \large\bf{\purple{ \longrightarrow}} \tt \: x \: = \: \large\cancel\frac{30}{2} \\ \\ \large\bf{\purple{ \longrightarrow}} \tt \: x \: = \: 15 \end{cases}$