Question

Resolva estas equações da maneira que vc quiser
x/2+4x=15-(-x-6)

2(2x-4)=5-(x/2+4)

Answer 1

a) (x + 8x)/2 = 15 + x + 6

2 (21 + x) = 9x

9x - 2x = 42

7x = 42 → x = 6

b) 4x - 8 = 5 - x/2 - 4

4x + x/2 = 9

8x + x = 18

9x = 18 → x = 2

Answer 2

$\frac{x}{2} + 4x = 15 - (-x-6)$

$\frac{x}{2} + 4x = 15 + x+6$

$\frac{x}{2}$ + 4x - x = 15 + 6
$\frac {7x}{2}$ = 21
7x = 21×2
7x = 42
$x = \frac{42}{7}$
x = 6




$2(2x-4) = 5 - (\frac{x}{2} + 4)$

4x - 8 = 5 - $\frac{x}{2}$- 4

4x + $\frac{x}{2}$ = -4 + 8 + 5 (=9)
8x + x = 18
x = 18/9

x = 2


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