+4473 For this one you can either distribute by multiplying 1/7 to x and to 21 or by multiplying both sides by 7 to get rid of the fraction, 1/7!
If we multiply both sides by 7, we get (x + 21) = -6*7...
Now, it is simple algebra:
x + 21 = -42
Subtract 21 from both sides:
x = -42 - 21
x = -63.
+4473 For this one you can either distribute by multiplying 1/7 to x and to 21 or by multiplying both sides by 7 to get rid of the fraction, 1/7!
If we multiply both sides by 7, we get (x + 21) = -6*7...
Now, it is simple algebra:
x + 21 = -42
Subtract 21 from both sides:
x = -42 - 21
x = -63.
