Is the following always, sometimes, or never true? 14+3x-7=7x+7-4x a.always b.sometimes c.never
2 answers:
Answer: The correct option is (a) always.
Step-by-step explanation: We are given to decide whether the following equation is always true, sometimes true or never true :
To check the given equation, we must try to simplify the equation.
From equation (i), we have
Since the result 0 = 0 is always true, so whatever be the value of x, the given equation is always true.
Option (a) is CORRECT.
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Answer:
<em>(1, - 2) </em>
Step-by-step explanation:
2x - y = 4
3x + y = 1
A = = 2(1) - 3( - 1) =2 + 3 = 5
=
= 4(1) - 1(- 1) = 4 + 1 = 5
=
= 2(1) - 4(3) = 2 - 12 = - 10
<em>x </em>= =<em> 1</em>
<em>y </em>= = <em>- 2</em>
<em>(1, - 2)</em>