\(7\times\left(x-11\right)=763\\ x-11=763:7\\ x-11=109\\ x=109+11\\ x=120\)
x-11=763:7
x-11=109
x=109+11
x=120
\(x\left(x-11\right)=763:7=109\\ =>x-11=\dfrac{109}{x}\\ =>x=\dfrac{109}{x}+11=\dfrac{109}{x}+\dfrac{11x}{x}=\dfrac{109+11x}{x}\)
\(\text{7×(x - 11)
= 763}\\ x-11=763:7\)
\(x-11=109\\
x=109+11\\
x=120\)