Question 153631
Solve for x:
1) {{{6(3x-1)-10x = 7}}} Do I have this right? or is it:
2) {{{6(3x-1)-10x}}} for x = 7?
Well, let's do them both and you pick whichever one is right!
1) Solve for x:
{{{6(3x-1)-10x = 7}}} Apply the distributive property.
{{{18x-6-10x = 7}}} Combine the x's
{{{8x-6 = 7}}} Add 6 to both sides.
{{{8x = 13}}} Finally, divide both sides by 8.
{{{x = 13/8}}}
{{{x = 1.625}}}

2) Evaluate:
{{{6(3x-1)-10x}}} for x = 7 Simplify then substitute a 7 everywhere there is an x in the expression.
{{{18x-6-10x}}}
{{{8x-6}}} x = 7, so...
{{{8(7)-6 = 56-6}}} = 50