Question

(a)-x+4=1
(b)4-x=2
(c)x+1=2x+3
(d)7x+3=10
(e) x+9=5
(f)8+2x=x+2x-1
(g) 5x=15​

Answer 1

Resposta

Explicação passo-a-passo:

$A) x+4=1x= 1 -4x=-3 \\B) 4-x=2-x=2-4-x=-2x=2 \\C) x+1=2x+3x=2x+3-1x-2x=2x=-2 \\D) 7x+3=107x=10-37x=7x=\frac{7}{7}\\x=1\\\\E) x+9=5\\x=5-9\\x= -4\\ \\F) 8+2x=x+2x-1\\2x=3x -1-8\\ 2x-3x= -9\\-x= -9\\\\x=9\\ \\G) 5x= 15\\\frac{15}{5} \\x=3$