Solve the formula A=10+ry. solve for y
2 answers:
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** 3x - x -7 = 3
2x = 10
x = 5
** <span>6. 3x - 3 -x = 3
18x - 3 - x = 3
17x = 6
x = </span>
** <span>7. -1 - 2x + 3x = 5
-7 - 2x + 3x = 5
-7 + x = 5
x = 12
** </span><span>8. 3x - 22 - x = 6
24x - 22 - x = 6
23x = 28
x = </span>
** <span>9. 2x + 3x -10 = 10
18x + 3x - 10 = 10
21x = 20
x = </span>
2x = 10
x = 5
** <span>6. 3x - 3 -x = 3
18x - 3 - x = 3
17x = 6
x = </span>
** <span>7. -1 - 2x + 3x = 5
-7 - 2x + 3x = 5
-7 + x = 5
x = 12
** </span><span>8. 3x - 22 - x = 6
24x - 22 - x = 6
23x = 28
x = </span>
** <span>9. 2x + 3x -10 = 10
18x + 3x - 10 = 10
21x = 20
x = </span>
You must try to remove one of the unknown variables from the system by multiplying one in a way that when adding (or subtracting) one to another “makes it disappear” and so whatever value you get can be substituted back in to get the other unknown!
