Answer: =14x+35y-35
Step-by-step explanation:
[tex]7\left(2x+5y-5\right)[/tex]
[tex]\mathrm{Apply\:the\:distributive\:law}:\quad \:m\left(a+b+c\right)=ma+mb+mc[/tex]
[tex]7\left(2x+5y-5\right)=7\cdot \:2x+7\cdot \:5y+7\left(-5\right)[/tex]
[tex]=7\cdot \:2x+7\cdot \:5y+7\left(-5\right)[/tex]
[tex]=14x+35y-35[/tex]
