3 years ago

2. Factorise: a - b - a + b2.square

1 answer:

7 0

A - a removes both a’s from equation, then you’re left with b + bsquared, since they are unknown values you cannot combine them, even if it is the same letter, you can only add and subtract unknown values with their same letters together.

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4x+12=0 how do you solve

Olenka [21]

Here is how you solve
4x+12-12=0-12
4x=-12
x=-3

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3 years ago

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What is the value of x in the equation 7x + 2y = 48 , when y = 3?<br><br> x =

Dennis_Churaev [7]

Plug in 3 for "y":

7x + 2y = 48

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Then, you have to subtract 6 to both sides..

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Divide 7 to both sides and the your answer would be 6

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Step-by-step explanation:

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