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1 year ago

How do I solve explain steps

Mathematics

1 answer:

deff fn [24]1 year ago

5 0

Answer:

There's no real solutions to this expression.

Step-by-step explanation:

5x - (3 - 2x) = - (-x - 7) + 6x

First we need to get rid of the parenthesis and to do that we multiply inside the parenthesis with -1

5x - 3 + 2x = x + 6 + 6x (remember, negative × negative = positive)

Now add/subtract like terms:

5x + 2x - 3 = 7x - 3

x + 6x + 7 = 7x + 7

Rewrite the equation:

7x - 3 = 7x + 7, 7x will eliminate each other so we will be left with,

-3 = 7 which cannot be true so we say there's no real solutions to this expression.

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4 years ago

Read 2 more answers

if ABC is a isosceles triangle with sides(2a+b)cm, (6a+2b+1)cm and a base of 4a cm, if it's perimeter is 28 find sides

Katyanochek1 [597]

Answer:

a=1.5, b= 3

Step-by-step explanation:

sum of all sides will give us perimeter. Therefore

2a+b+6a+2b+1+4a=28

12a+3b+1=28

12a+3b=27....eqn1

since t two sides of this isosceles triangle are equal:

2a+b=4a

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substituting $\frac{b}{2}$ $.$ in the first equation whenever we encounter a we will have:

$12(\frac{b}{2})+3b=27\\$

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2 years ago

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