Question

MATEMÁTICA
AJUDEM POR FAVOR​

Answer 1

Resposta:

a) x+5=8   |   X=8-5   |   X=3

b) x-4=3   |   X=3+4   |   X=7

c) x+6=5   |   X=5-6   |   X=-1

d) x-7=-7   |   X=-7+7   |   X=0

e) x+9=-1   |   X=-1-9   |   X=-10

f) 9x=-9   |   X=-9/9   |   X=-1

g) 25x=0   |   X=0/25   |   X=0

h) 35x=-105   |   X=-105/35   |   X=-3

i) 4x=1   |   X=1/4   |   X=0,25

j) 5x - 3 + x = 2x + 9  |  6x - 3 = 2x + 9  |  4x = 12   |  X+12/4  |  X=3

k) 17x - 7x = x + 18  |  9x = 18  |  X=18/9  |  X=2

l) 3(2x + 3) - 4(x-1) = 3 | 6x + 9 - 4x - 4 = 3 | 2x + 5 = 3 | 2x = 3-5 | 2x=-2 | X=-2/2 | X=-1

m) 7(x - 1) - 2(x - 5) = x - 5 | 7x - 7 - 2x - 10 = x - 5 | 5x - (-17) = x - 5 | 4x - (-17) = -5 | 4x = -5 + 17 | 4x = 12 | X=12/4 | X=3