Question

3. Simplify the expressions 4(2x – 1) + 3x + 11 and find the value, if x = 2 . class 7th​

Answer 1

$\sf \red{Given}$

$\sf{Expression : 4(2x - 1) + 3x + 11}$

$\sf{By \: Simpliying \: we \: get : }$

$\sf{ \implies 4(2x - 1) + 3x + 11}$

$\sf{ \implies 8x - 4 + 3x + 11}$

$\sf{ \implies 11x + 7}$

$\sf\red{If \: x=2 \: then}$

$\sf{f(x) = 11x + 7 \: \: \: \: } \\ \\ \sf{f(2) = 11(2) + 7} \\ \\ \sf{f(2) = 22 + 7 \: \: \: \: \: \: } \\ \\ \sf f(2) = 29 \: \: \: \: \: \: \: \: \: \: \: \: \:$