What is the solution to the system of equation

-7x-2y=-13

X-2y=11

Using substitution

Question

19-01-2016
Mathematics

Answered

What is the solution to the system of equation

-7x-2y=-13

X-2y=11

Using substitution

Verified Answer :

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Panoyin Panoyin · Answer 1 · 2016-01-19T19:06:24-05:00

-7x - 2y = -13
-7x + 7x - 2y = 7x - 13
-2y = 7x - 13
-2 -2
y = -3.5x + 6.5

  x - 2y = 11
  x - 2(-3.5x + 6.5) = 11
x - 2(-3.5x) - 2(6.5) = 11
x + 7x - 13 = 11
8x - 13 = 11
+ 13 + 13
  8x = 24
8 8
  x = 3

y = -3.5x + 6.5
y = -3.5(3) + 6.5
y = -10.5 + 6.5
y = -4
(x, y) = (3, -4)

What is the solution to the system of equation-7x-2y=-13X-2y=11Using substitution

Verified Answer :

Related Questions

What is the solution to the system of equation

-7x-2y=-13

X-2y=11

Using substitution