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Q: How would you solve a problem like 20 plus 2n?

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The letter X in the equation 14 plus X21 would be 2.5. this is a math problem.

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CCl4+Cl2

x=8

well we can't simiply solve that problem. we must no what y= to solve this. So u can only simpify ok combine like terms. 2y plus 9y is 11y. your answer is 11y+9

2y + 7x + y-1?

The answer to this equation would equal 4.8. This is a math problem.

The answer is 69. Simply add the numbers together arithmetically as you would for the problem two plus two. To check your work, a calculator is the best option.

The answer is 455. Simply add the numbers together arithmetically as you would for the problem two plus two. To check your work, a calculator is the best option.

467

The answer is .90. Simply add the numbers together arithmetically as you would for the problem two plus two. To check your work, a calculator is the best option.

To solve x + x + x + x, set the problem up as multiplication like this 4x = 128. Divide both sides of the problem by 4. You will get x = 32. To check your work, substitute 32 for the x and do the math. 4 x 32 = ?. If the answer is 128, the answer is correct.

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3 + 542 = 545 - 6 = 539.

x=8

n = 28

you can't solve that unless you know what the variable, expressed by x, is. if you have a whole equation, something like 5x+35=7x+6, then we could figure out what x is and solve your original problem.

There can be no solution because there is just an expression - no equation nor inequality.

75 percent is equal to 0.75, so the expression would look like (0.75x) +8. But if you do not know what it equals to it is not an equation and you can not solve it.

You cannot solve n + 412 because it is an expression NOT an equation (or inequality).

1299

Î£xievaluated for [ 0 < i < 11 ]. (That's just a neater way to write the problem. It doesn't help you solve it ...you still have to know how to add.)

In math problems without punctuation such as brackets, the standard convention in to solve from left to right. Therefore, you would solve the problem 15-3 times 4 plus nine like by three actions. 15-3 equals 12; 12 times 4 equals 48; 48 plus 9 equals 57.

cnvert to decimal

One has the choice of solving it by pencil or calculator.