how to solve a simple eqation
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First, write down the expression
2a + 3 = 7
Then, undo the + 3 by subtracting 3. Remember, you need to do it to BOTH sides!
2a + 3 - 3 = 7 - 3
so 2a = 4
Undo the multiply by 2 by dividing by 2, again on both sides
2a ÷ 2 = 4 ÷ 2
so, a= 2
Hope this helps!
2a + 3 = 7
Then, undo the + 3 by subtracting 3. Remember, you need to do it to BOTH sides!
2a + 3 - 3 = 7 - 3
so 2a = 4
Undo the multiply by 2 by dividing by 2, again on both sides
2a ÷ 2 = 4 ÷ 2
so, a= 2
Hope this helps!
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