3x+7=37
-7 -7
3x=30
/3 /3
x=10
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(7x + 4) = (3x + 7) Subtract (3x + 4) from both sides of the equation. (7x + 4) - 3x - 4 = (3x + 7) - 3x - 4 4x = 3 x = 3/4 Check: (7x + 4) = 7 (3/4) + 4 = (21/4) + 4 = (21/4) + (16/4) = 37/4 (3x + 7) = 3 (3/4) + 7 = (9/4) + 7 = (9/4) + (28/4) = 37/4 Yay.
if 3x+5=x+19 then x=7
x = 7 and 2/3
(5, 1)
3x+7=19 3x=12 minus 7 from both sides x=4 divide by three on both sides leaving just what x equals