Question 482439
{{{7(x-1) = 28}}} Solve for x. First apply the "distibutive property" to the let side to get:
{{{7x-7 = 28}}} Now add 7 to both sides to isolate the x-term on the left.
{{{7x = 35}}} Finally divide both sides by 7 to get the x by itself.
{{{x = 5}}} Now you know the value of x, you can find the value of 2x.
{{{2x = 2(5)}}}
{{{2x = 10}}}