The equation 7 = 2y + 9 is equivalent to -3 = 2y + 1 and -2 = y – 1 option (a) and (c) are correct.
It is defined as the relation between two variables, if we plot the graph of the linear equation we will get a straight line.
If in the linear equation, one variable is present, then the equation is known as the linear equation in one variable.
It is given that equation:
7 = 2y + 9
After simplification:
2y = 7 - 9
2y = -2
y = -1
a.) -3 = 2y + 1
After simplification:
2y = -3 - 1
2y = -4
y = -1
b.) 8 = 9y - 1
After simplification:
9y = 1 + 8
9y = 9
y = 1
c.) -2 = y – 1
After simplification:
y = -2 + 1
y = -1
d.) -4 = 2y + 6
After simplification:
2y = -4 - 6
2y = -10
y = -5
Thus, the equation 7 = 2y + 9 is equivalent to -3 = 2y + 1 and -2 = y – 1 option (a) and (c) are correct.
Learn more about the linear equation here:
brainly.com/question/11897796
#SPJ2
