Solve for x
x=-7
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21x-18=5\left(2+5x\right)
Use the distributive property to multiply 3 by 7x-6.
21x-18=10+25x
Use the distributive property to multiply 5 by 2+5x.
21x-18-25x=10
Subtract 25x from both sides.
-4x-18=10
Combine 21x and -25x to get -4x.
-4x=10+18
Add 18 to both sides.
-4x=28
Add 10 and 18 to get 28.
x=\frac{28}{-4}
Divide both sides by -4.
x=-7
Divide 28 by -4 to get -7.
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