algebra
posted by Anonymous .
2 (x3)3(x+5) = 3(x2) 7
distributive property
2x 6 3x 15 = 3x 6 7
combine like terms
x 21 = 3x 13
add x and 13 to both sides
7 = 4x
multiply both sides by 1/4
7/4 = x
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