Solve the equation.7x + 3 - 6x = 7 - 27
A. 23
B. -37
C. 37
D. -23
Answer: D
Mathematics
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Estimate the following mentally.90 + 53 - 253 + 410
A. 700 B. 625 C. 300 D. 350
Mathematics
Factor.4 - 16x + 15x2
A. (3x + 2)(5x + 2) B. (15x - 1)(x - 4) C. (15x - 2)(x - 2) D. (3x - 2)(5x - 2)
Mathematics
Use the properties of logarithms to find the exact value of the expression. Do not use a calculator.log5 25 ? log25 125
A. 5 B. 125 C. 25 D. 3
Mathematics
Solve by substitution and check. 6x + 7y = 6 2x + 4y = -8
A. (7, -5) B. (8, -5) C. (8, -6) D. No solution
Mathematics