Answer:
YES
Step-by-step explanation:
[tex]\bold{METHOD\ 1:}\\\\\text{Put}\ t=7\ \text{to the equation}\ -7=-56+7t,\ \text{and check equality}\\\\-7=-56+7(7)\\-7=-56+49\\-7=-7\qquad\bold{CORRECT}[/tex]
[tex]\bold{METHOD\ 2:}\\\text{solve the equation:}\\\\-7=-56+7t\qquad\text{add 56 to both sides}\\\\-7+56=-56+56+7t\\\\49=7t\qquad\text{divide both sides by 7}\\\\\dfrac{49}{7}=\dfrac{7t}{7}\\\\7=t\to t=7[/tex]
