4y + 3 = 7y - 18
Add 18 to each side of the equation:
4y + 21 = 7y
Subtract 4y from each side:
21 = 3y
Divide each side by 3:
7 = y
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How do you solve 4y plus x equals 8
x = 4 and y = 0
y = 31
You cannot solve one equation in two unknowns.
4y+2 = 2y+6 4y-2y = 6-2 2y = 4 y = 2