Question

the sum of a number and 7 is X for the results is equal to -12 the value of the number is 4 -10 -4 10

Answer 1

`\begin{gathered} 4(x+7)=-12 \\ \text{hence} \\ x+7=(-12)/(4) \\ x+7=-3 \\ x=-3-7 \\ x=-10 \end{gathered}`