Question

use the method of substitution to solve the following pairs of simultaneous equations 1. y = 2x-4 and 3x+y=11​

Answer 1

X = 3 and Y = 2

Good Luck!!

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Answer 2

x=3 and y=2

Explanation:

first you rearranging the values

2x - y = 4 ...............(i

3x + y = 11 ..............(ii)

make y the subject of formular from ii

y=11 - 3x .............(iii

substitutes equ. (iii) into (i)

2x - (11-3x) = 4

2x - 11 + 3x = 4

5x = 15

x = 3

substituting x into equ. (iii) we have:

y = 11 - 3(3)

y = 11 - 9

y = 2