This can be written as 5x=49+2(-x). To solve this,simplify and solve. 5x=49-2x 7x=49 x=7
x = 3
12
There is a formula for "the difference of squares." (x + 7)(x - 7) = 0 x = 7, -7
Multiply -10 times 12 = -120
12 x 49 = 588..12x49==10848===588
4.0833
This can be written as 5x=49+2(-x). To solve this,simplify and solve. 5x=49-2x 7x=49 x=7
12 x 49 = 588
Call your number "x", write an equation, and solve it: 8x = x + 49 7x = 49 x = 7
it is 30,576
12 x 212= 2544
x = 3
45+4 = 49 49/7=7 7*7=49-4=45 so x=7
12
x >/= 12
x=12