A=10
b=2
i got my answer by doing 4*2*2*2 which is 12
y = -x + 5
5x + 2y = 14
5x + 2(-x + 5) = 14
5x + 2(-x) + 2(5) = 14
5x - 2x + 10 = 14
3x + 10 = 14
- 10 - 10
3x = 4
3 3
x = 1¹/₃
y = -x + 5
y = -1¹/₃ + 5
y = 3²/₃
(x, y) = (-1¹/₂, 3²/₃)
The equation of the line in slope-intercept from would be y=3x-3.
3x is the slope also known as the rise over run.
-3 is the y-intercept, where the line cross the y-axis on the graph.
a. The solution is (0,2)
b. The first expression will be easier to substitute as in the first expression the variable y is already isolated on one side of the equation so we can easily put 5x+2 in place of y in equation 2.
Step-by-step explanation:
Given equations are:

a. Solution
Putting y = 5x+2 in equation 2

Putting x = 0 in equation 1

Hence,
The solution is (0,2)
b: Reason:
The first expression will be easier to substitute as in the first expression the variable y is already isolated on one side of the equation so we can easily put 5x+2 in place of y in equation 2.
Keywords: Linear equation, substitution
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