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Rasek [7]
2 years ago
7

X – 2y = 1 2x + 3y = -12

Mathematics
2 answers:
lions [1.4K]2 years ago
8 0

Answer:

x= -3

y= -2

From the first one, if you add 2y to both sides you can plug that into the second one and solve for y. Then, plug y to the first one and solve for x.

kap26 [50]2 years ago
8 0
X-2y=1
X=1+2y

2(1+2y)+3y=-12
2+4y+3y=-12
2+7y=-12
7y=-12-2
7y=-14
y=-2

x-2*-2=1
x-(-4)=1
x+4=1
x=1-4
X=-3

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Answer:

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Step-by-step explanation:

<u>Solving Equations Using Successive Approximations</u>

We need to find the solution to the equation

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The approximation has been already started and reached a state for x=2.5 where

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The difference between the results is 0.25, we need further steps to reach a good solution (to the nearest tenth)

Let's test for x=2.4

f(2.4)=-0.2

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It's accurate enough, thus the solution is

\boxed{x=2.4}

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