exam Maths Puzzle Numerical Ability

1. Please help me solve these equations;
a). 8x - (3x - 5) = 40
b). 7(3x + 6) = 11 - (x + 2)
c). -7 + 9x = 9x - 7
d). 5x + 3 = 11 - 4x + x

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exam Other Question

Which type of dilation is determined by a scale factor of 10?
choices
enlargement
reduction
congruence transformation
none of these I need help combining logarithims: A. 2ln(axy)-(1/3)ln(z)+(1/3)ln(b) B. log(P+Q)-2(log(A+B)+Rlog(Z) Thanks, Bennie :)