Question

1
Solve the following equation and check your answer:
7 + 3 (x+5) = 31​

Answer 1

$\huge \sf \underbrace {Solution}$

$\sf\implies7 + 3(x + 5) = 31$

$\sf\implies7 + 3x + 15 = 31$

$\sf\implies \: 3x + 22 = 31$

$\sf\implies 3 x = 31 - 22$

$\sf\implies3 x = 9$

$\sf\implies \: x = \frac{9}{3}$

$\huge\sf\therefore \blue {x = 3}$

VERIFICATION -

$\sf\implies7 \times 3(3 + 5) = 31$

$\sf\implies7 + 9 + 15 = 31$

$\sf\implies16 + 15 = 31$

$\sf \implies \: 31 = 31$

$\huge \sf \:Hence \: , \:LHS =RHS$

Answer 2

$\huge\rm\purple\star\:\underline{Given}$

• $\sf\:7 + 3 (x+5) = 31$

⠀⠀⠀⠀⠀─━━━━━━━━━━━━─

$\huge\rm\purple\star\:\underline{To\:find}$

• x = ?

⠀⠀⠀⠀⠀─━━━━━━━━━━━━─

$\huge\rm\purple\star\:\underline{Solution}$

$\sf\:7 + 3 (x+5) = 31$

$\sf➞\:7 + 3x+ 15 = 31$

$\sf➞\: 3x+ 22 = 31$

$\sf➞\: 3x = 31-22$

$\sf➞\: 3x = 9$

$\sf➞\: x = \frac{9}{3}$

$\small{\underline{\boxed{\mathrm\red{➠\:x=3}}}}$

⠀⠀⠀⠀⠀─━━━━━━━━━━━━─

!! Hope it helps !!