Question

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Answer 1

Answer:

18x+3=27+2x

18x-2x =27-3

16x =24

x=24/16

x=1.5

Step-by-step explanation:

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Answer 2

Answer :

1. Find the value of x :-

18x + 3 = 27 + 2x

Step-by-step explanation :

To Find,

• The value of x

Solution,

➠ 18x + 3 = 27 + 2x

➠ 18x - 2x + 3 = 27 ..... transposing +2x to L.H.S

➠ 18x - 2x = 27 - 3 .... transposing +3 to R.H.S

➠ 16x = 24

➠ x = 24 / 16

➠ x = 1.5

The value of x is 1.5.

2. Find the side of a cube whose surface area is 600cm²

Step-by-step explanation :

To Find,

• Side of cube

Solution,

Given that,

• Surface area of cube = 600cm²

As we know that,

Surface area of cube = 6(a)²

Where,

• a = side of a cube

Therefore, side is,

➠ 6(a)² = 600

➠ a² = 600 / 6

➠ a² = 100

➠ a = √ 100

➠ a = 10

The side of cube is 10cm.