Question

Solve the system of linear equations below.


y = -2x + 19
y = x + 7

Answer 1

subsititute the value of y=x+7 into the first equation
x+7= -2x +19

Answer 2

A. x = 4, y = 11 B. x = -12, y = -5 C. x = -4, y = 3 D. x = 8, y = 3 What is the answer of this a, b, c or d

Answer 3

you have to work it out yourself too..

Answer 4

Yes but if i'm here because I DON'T Know the ASWER :)

Answer 5

(a) Set y = y:
y = y

(b) Set the expressions for y equal to each other:
x+ 7 = -2x + 19

(c) Add 2x to both sides:
2x + x + 7 = 2x - 2x + 19

(d) Simplify
3x + 7 = 19

(e) Subtract 7 from both sides:
3x + 7 - 7 = 19 - 7

(f) Simplify
3x = 12

(g) Divide both sides by 3:
3x/3 = 12/3

(i) Simplify
x = 4

Answer 6

(j) substitute the value of x back into one of the original equations to find y:

y = x + 7, x = 4, therefore:
y = 4 + 7
y = 11

Therefore:

x = 4, y = 11