Question

A ) 1 7 X – 7 X = X + 18

B ) X + X – 4 = 17 – 2 X + 1

C ) X + 2X + 3 – 5 X = 4 X – 9

D ) 5 X + 6 X – 16 = 3 X + 2 X – 4


E ) 5 X + 4 = 3 X – 2 X + 4

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Answer 1

Explicação passo-a-passo:

A)

$17x-7x=x+18\\\\10x=x+18\\\\10x-x=18\\\\9x=18\\\\x=\frac{18}{9} \\\\x=2$

B)

$x+x-4=17-2x+1\\\\2x-4=18-2x\\\\2x+2x=18+4\\\\4x=22\\\\x=\frac{22}{4} =\frac{11}{2} \\\\x=5,5$

C)

$x+2x+3-5x=4x-9\\\\-2x+3=4x-9\\\\-2x-4x=-9-3\\\\-6x=-12\\\\x=\frac{-12}{-6}\\ \\x=2$

D)

$5x+6x-16=3x+2x-4\\\\11x-16=5x-4\\\\11x-5x=-4+16\\\\6x=12\\\\x=\frac{12}{6} \\\\x=2$

E)

$5x+4=3x-2x+4\\\\5x+4=x+4\\\\5x-x=4-4\\\\4x=0\\\\x=\frac{0}{4} \\\\x=0$