Answer:
x=3
Step-by-step explanation:
x+7=10
x+7-7=10-7
x=3
Answer:
In algebra, we begin to see variables or letters that are used to represent numbers. An example of a mathematical expression with a variable is 2x + 3. In the expression 2x + 3, the coefficient of x is number 2, and it means 2 times x plus 3.
Answer:596
Step-by-step explanation:
511+85(5 is by itself),(8+1=9)(1+5=6)
511
+85
596
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