This equation is hard to solve. please leave your working out.

find x

The value of x is -10.

Step-by-step explanation:

Given,

To find value of x.

Formula

Now,

or,

or,

or, 2(2x+1) = 4(x-2)-x [ since the base is equal the powers are also equal]

or, 4x+2 = 4x-8-x

or, 4x-4x+x = -8-2

or, x = -10

8(-10x+3.5y-7)

8×-10x + 8×3.5y + 8×-7

-80x + 28y - 56

therefore

-80x+28y-56 is the correct answer

d) 30 units^2

area of rectangle = l × b

we know,

length = 10 unit

breadth = 3 unit

applying the formula,

= l × b

= 10 × 3

= 30 unit^2

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