The expression y = 7 + 2x can be substituted into the first equation to find the variable "x"
System of equation are made of two or more equations with unknowns
Given the system of equation
4x=5-2y
y-2x=7
From equation 2:
y = 7 + 2x
The expression y = 7 + 2x can be substituted into the first equation to find the variable "x"
Learn more on system of equation here: https://brainly.com/question/14323743
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