0
First you need to make it equal 0 by subtracting 28 from the left.
x2-7x-18 = 0
Then you need to factorise it by finding two numbers that add to make -7 and multiply to make -18 and writing it in brackets like this.
(x-9)(x+2) = 0
Then you reverse the signs of the numbers in the brackets to get the two answers (this is a quadratic equation because it has an x2 so it will have two answers).
9 and -2
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B equals 10 plus a solve for a?
Not enough information to solve
Can you Solve 3x plus 6 equals x - 10?
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B equals 10 plus a solve for a?
Not enough information to solve
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If 6x + 10 = 11x , then x=2.
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10+r = 2r Subtract r from both sides:- r = 10
Solve the equation -10 equals 12 plus x?
the answer is-10 = 12 +xx= -10-12x=-22this is the answerx= -22
