Question

Solve the system of linear equations by graphing. x+y=27
y=x+3

Answer 1

Answer:

X=12 Y=15

Step-by-step explanation:

X+Y=27 (1)

Y=X+3 (2)

substitute (2) into (1)

X+X+3=27

2X=24

X=12

substitute X=12 into (2)

Y=12+3

Y=15

Answer 2

The solution to the problem as shown in the graph is at A(12, 15):

A linear equation is in the form:

y = mx + b;

where m is the slope, b is the y intercept and y, x are variables.

Given the linear equations:

x + y = 27

y = x + 3

Plotting the equations using Geogebra online graphing tool, the solution to the problem as shown in the graph is at A(12, 15):

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