4x-7+3x+9=180 find the value of x
1 answer:
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Answer:
Step-by-step explanation:
Given
The translated triangles
Required
Find x and y
We have:
means:
Open bracket
Collect like terms
Divide by 6
means
Open bracket
Collect like terms
Divide by 2
A
evaluate f(5) and f(2)
f(5) = 5m + b and f(2) = 2m + b, hence
f(5) - f(2) = 5m + b - 2m - b = 3m
the expression simplifies to
= 2 ( cross- multiply )
3m = 6 ( divide both sides by 3 )
m = 2 → A
