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First of all let's start with a lttle explanationn of waht a polynomial is. A polynomial is a function of x denoted f(x) which is defined as f(x)=a 0 +a 1 x+. . .+a n x n which in other words is a sum of x's...

Method 1 (algebraically): Since we have "y=" at the start of both equations, we can substitue one into the other to get 3x-10=2x+5 Then we want all the x terms on one side of the equation, and all ...

y=3x (1) 2x+y = 5 (2) Here we are being asked to find what the value of x and y is. It is asking us to substitute either x or y into the equation to help us find our solution. Now substitue means remove some...

Here, we have two equations involving two variables, x and y. The question asks us to 'solve' the set of simultaneous equations. Equivalently, it is asking us to find the x values (and corresponding y values...

3x+y=-2 ...1) -7x+5y=34 ...2) Using the substitution method: Rearrange equation 1): y=-3x-2 ...1)) substitute equation 1)) into eqaution 2) -7x +5(-3x-2)=34 -7x-15x-10=34 -22x=44 x=-2 subsitute x into 1)) y=...