QUESTION IMAGE
Question
find the solution of the system of equations.
\\(4x - y = 11\\)
\\(2x - 4y = -26\\)
answer
( , )
Step1: Isolate y from first equation
From $4x - y = 11$, rearrange to get $y = 4x - 11$.
Step2: Substitute y into second equation
Substitute $y = 4x - 11$ into $2x - 4y = -26$:
$$2x - 4(4x - 11) = -26$$
Expand and simplify:
$$2x - 16x + 44 = -26$$
$$-14x + 44 = -26$$
Step3: Solve for x
Subtract 44 from both sides:
$$-14x = -26 - 44$$
$$-14x = -70$$
Divide by -14:
$$x = \frac{-70}{-14} = 5$$
Step4: Solve for y using x=5
Substitute $x=5$ into $y = 4x - 11$:
$$y = 4(5) - 11 = 20 - 11 = 9$$
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$(5, 9)$