Answer:
Step-by-step explanation:
[tex]\mathrm{Expand\:}-\left(4-x\right):\quad -4+x[/tex]
Steps
[tex]-\left(4-x\right)[/tex]
[tex]\mathrm{Apply\:the\:distributive\:law}:\quad \:-\left(a-b\right)=-a-\left(-b\right)[/tex]
[tex]-\left(4-x\right)=-4-\left(-x\right)[/tex]
[tex]=-4-\left(-x\right)[/tex]
Simplify
[tex]=-4+x[/tex]
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