Question

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Answer 1

Resposta:

a) 8a + 2a = 10a

b) 7x -5 x = 2x

c) -2y² -9y²= 11y²

d) 4a-a= 3a

e) 4y- 6y = - 2y

f) -3m + 8m= 5m

g) 6xy - 8yx = -2 xy

h) 5x - 5x = 0

i)7x+3x = 10x

j) - y - 10y = 11y

geometria:

a) 4x + 4x + 2x + 2x = 12x

b)90 + 90 + 4x + 2x

180 + 6x

x= 180÷6

x= 30

c) x+30 + x+20 + x+ 10 +x

4x + 60

4x = 60

x= 60÷4

x= 15

Explicação passo-a-passo:

é isso, espero ter ajudado ( ꈍᴗꈍ)