Question

observe essas figuras e calcule o valor de x...urgente

Answer 1

a)

${120}^{0} = 5x + x = 6x \\ x = \frac{ {120}^{0} }{6} = {20}^{0}$

b)

$3x + {15}^{0} = {90}^{0} + x \\ 2x = {90}^{0} - {15}^{0} \\ x = \frac{ {75}^{0} }{2} = {37}^{0} {30}^{l}$

c)

$\frac{x}{4} + {70}^{0} = (x - {40}^{0} ) + ( \frac{2x}{3} - {60}^{0} ) \\ \frac{x}{4} + {70}^{0} = \frac{5x }{3} - {100}^{0} \\ \frac{x}{4} - \frac{5x}{3} = { - 100}^{0} - {70}^{0} \\ \frac{23x}{12} = { - 170}^{0} \\ x = \frac{12 \times {( { - 170}^{0} )} }{23} \\ x = - {88}^{0} {42}^{l}$