Isabel says that the equation x-3=-(x-2) has no solution because a number can never be equal to its opposite. Explain the error Isabel made.

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:

in problems involving proportions, we can use cross products to test whether two ratios are equal and form a proportion. to find the cross products of a proportion, we multiply the outer terms, called the extremes, and the middle terms, called the means.

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the ratio of balloons to tables is 5: 2 and the constant variation is 5.

the equation is y=5x