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tensa zangetsu [6.8K]
3 years ago
9

Solve the simultaneous equations by substitution x +y=−6 x+5y =−2

Mathematics
2 answers:
Lisa [10]3 years ago
6 0

Answer:

y=1

x=-7

Step-by-step explanation:

x+y=-6    x=-6-y

x+5y=-2

substitute

(-6-y)+5y=-2

reduce

-6+4y=-2

4y=4

y=1

x=-6-y=-6-1=-7

Arlecino [84]3 years ago
5 0

Answer:

1. x+y=−6

Find the x-intercepts.

x-intercept(s):

(−6,0)

Find the y-intercepts.

Tap for more steps...

y-intercept(s):

(0,−6)

List the intersections.

x-intercept(s):

(−6,0)

y-intercept(s):

(0,−6)

2. To find the x-intercept, substitute in

0 for y and solve for x. To find the y-intercept, substitute in

0 for x and solve for y.

x-intercept(s):

(−2,0)

y-intercept(s):

(0,−2/5)

x+5y=−2

Subtract x from both sides of the equation.

5y=−2−x

Divide each term by 5 and simplify.

y=−2/5−x5

Subtract 5y from both sides of the equation.

x=−2−5y

Step-by-step explanation:

1st graph is for 1st answer.

2nd graph is for 2nd answer.

<h2>Hope it is helpful....</h2>

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