Answer:
x = -2
Step-by-step explanation:
6(x+7)=30
6x+42=30
6x=-12
x=-2
Answer:
it's Rectangle
Step-by-step explanation:
I did the test and got this right.
A Variable is a symbol for a number we don't know yet. It is usually a letter like x or y.
A number on its own is called a Constant.
A Coefficient is a number used to multiply a variable (4x means 4 times x, so 4 is a coefficient)
4:3 =8:?
Answer: 8:6
so 6 would be correct
Answer:make sure the value of x is positive
-check the solution to ensure it is a rational number
Step-by-step explanation: .