+130511 1/2(x+6)=2x and 5-2x=7x-h
Solving the first equationfor x, we have
(1/2)(x + 6) = 2x multiply both sides by 2
x + 6 = 4x subtract x from both sides
6 = 3x divide both sides by 3
2 = x
Subbing this into the second equation, we have
5 - 2(2) = 7(2) - h simplify
5 - 4 = 14 - h
1 = 14 - h subtract 14 from both sides
-13 = -h multiply through by -1
13 = h
