Question

80 + 40 = 2x + 4x + 2x


15 + 4x + 8x = 30 + 2x


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Answer 1

Answer:

first x = 15

second x = 1.5

Answer 2

(i) x= 15

(ii)x =3/2

Step-by-step explanation:

(I) 80+40=2x+4x+2x

=120=2x+4x+2x

= 120 = 8x

= x = 120 / 8

so, x= 15

(ii) 15 + 4x + 8x = 30 +2x

= 15 + 12x = 30 +2x

order summands

= 12x +15= 2x + 30

= 12x = 2x + 30 -15

= 12x = 2x + 15

= 12x - 2x = 15

= 10x = 15

= x = 15/ 10

= x = 3/ 2