Question

someone, please help me figure out this simultaneous equation!!

3x + 2y = 8
2x + 5y = –2

Answer 1

Answer:

3x +2y = 8 1

2x +5y = -2 2

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Answer 2

♪Given:-

3x+2y=8–(1)

2x+5y=-2–(2)

$\rule{200}{1}$

★To Find:-

The Value of x and y?

$\rule{200}{1}$

♦Solution:-

★Multiply eq-(1) with 2 and eq-(2) with 3★

→6x+4y=16–(3)

→6x+15y=-6–(4)

★Subtract (3)&(4)★

6x+4y=16

6x+15y=-6 [Signs will change]

0-11y=22

-11y=22

-y= $\frac{22}{11}$

y=-2–(5)

★Use 5 in any eq,i prefer eq–(3)★

→6x+4×(-2)=16

→6x-8=16

→6x=16+8

→6x=24

→x=$\frac{\cancel{24}}{\cancel{6}}$

x=4–(6)

$\rule{200}{1}$

♦x=4♦

★y=-2★

$\rule{200}{7}$