Which expression would be easier to simplify if you used associative property to change the grouping a.85+(120+80)
b.(2+3/7)+4/7
c.[-40+(60)]+52
d.4+(1.2+(0.2))

x is variable or an unknown value to find

example:

2x = 5 which means x = 3

arrange the equations with like terms in columns.

analyze the coefficients of x or y.

add the equations and solve for the remaining variable.

substitute the value into either equation and solve.

check the solution.

step-by-step explanation:

step-by-step explanation:

there are 36 inches in a yard

25 : 36 = 0.69 yards (you can round to 0.70)

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step-by-step explanation: