Verified Answer :

texaschic101

0.75(x + 40) = 0.35(x + 20) + 0.35(x + 20)
0.75x + 30 = 0.35x + 7 + 0.35x + 7
0.75x = 0.70x + 14 - 30
0.75x - 0.70x = - 16
0.05x = -16
x = -16/0.05
x = -320

one solution

meerkat18

First, distribute the numbers outside the parentheses with those inside. That would be,
                        0.75x + 30 = 0.35x + 7 + 0.35x + 7
Simplifying,
                         0.75x + 30 = 0.70x + 40
The value of x from the equation is 200. Thus, the equation only has 1 solution and that is 200.

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