Solve for x. -5x=-30
To solve for x, we need to isolate x on one side of the equation. Let's do that:
-5x = -30
To get rid of the negative sign in front of x, we can divide both sides of the equation by -5:
-5x / -5 = -30 / -5
Simplifying, we get:
x = 6
So, x = 6.
12- x over 9=11
To solve for x, we need to isolate x on one side of the equation. Let's do that:
12 - x/9 = 11
To eliminate the fraction, we can multiply both sides of the equation by 9:
9(12 - x/9) = 9(11)
Distributing the 9 on the left side:
108 - x = 99
To isolate x, we can subtract 108 from both sides:
108 - x - 108 = 99 - 108
Simplifying, we get:
-x = -9
Since -x is the same as -1x, we can rewrite the equation as:
-1x = -9
To solve for x, we can multiply both sides of the equation by -1:
-1(-1x) = -1(-9)
Simplifying, we get:
x = 9
So, x = 9.
-20=-5+3x
To solve for x, we need to isolate x on one side of the equation. Let's do that:
-20 = -5 + 3x
To isolate 3x, we can subtract -5 from both sides of the equation:
-20 + 5 = -5 - 5 + 3x
Simplifying, we get:
-15 = 3x
To solve for x, we can divide both sides of the equation by 3:
-15/3 = 3x/3
Simplifying, we get:
-5 = x
So, x = -5.
20=5-3/8 x
To solve for x, we need to isolate x on one side of the equation. Let's do that:
20 = 5 - (3/8)x
To isolate (3/8)x, we can subtract 5 from both sides of the equation:
20 - 5 = 5 - 5 - (3/8)x
Simplifying, we get:
15 = -(3/8)x
To solve for x, we can multiply both sides of the equation by the reciprocal of -(3/8), which is -8/3:
15 * (-8/3) = -(3/8)x * (-8/3)
Simplifying the left side, we get:
-40 = x
So, x = -40.