"Can be" becomes might be. "Cost-effective" is budget-friendly as per the previous example. "Solution" is approach. "Users" is participants. "Cannot afford" would be not having money. "Purchase" is buy. "Valid" is legitimate. "Activation" is verification. "Key" is code.
I should also ensure that the synonyms make sense in context. For example, "cost-effective" might be "economical|budget-friendly|thrifty". re-loader activator 2.2 final
"Software compatibility:Users need to ensure that Re-Loader Activator 2.2 Final is compatible with their software and operating system." "Can be" becomes might be