-7.8 = 4.4 =2r
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To solve the equation -7.8 = 4.4 = 2r step-by-step, we need to simplify it.
Step 1: Remove the equal sign between -7.8 and 4.4 to isolate 2r.
-7.8 = 4.4 -> 2r
Step 2: Combine the terms on the left side of the equation.
-7.8 + 7.8 = 4.4 + 7.8 -> 2r
Step 3: Simplify the equation.
0 = 12.2 -> 2r
Step 4: Divide both sides of the equation by 2 to solve for r.
0/2 = 12.2/2 -> r
Step 5: Simplify the equation.
0 = 6.1 -> r
Therefore, the solution to the equation -7.8 = 4.4 = 2r is r = 6.1.
To solve the equation -7.8 = 4.4 = 2r, we need to find the value of r.
First, let's simplify the equation. Since -7.8 = 4.4, we can rewrite the equation as -7.8 = 2r.
To isolate the variable r, we need to get rid of the coefficient 2. We can do this by dividing both sides of the equation by 2:
-7.8 ÷ 2 = 2r ÷ 2
Simplifying further:
-3.9 = r
Therefore, the value of r is -3.9.
One key concept to remember when solving equations is that you want to isolate the variable on one side of the equation by performing the same operation on both sides. This ensures that you maintain the equality of the equation. In this case, we divided both sides by 2 to isolate the variable r on one side.